      SUBROUTINE ccsdt_lambda2_12(d_a,k_a_offset,d_b,k_b_offset,d_c,k_c_
     &offset)
C     $Id$
C     This is a Fortran77 program generated by Tensor Contraction Engine v.1.0
C     Copyright (c) Battelle & Pacific Northwest National Laboratory (2002)
C     i0 ( h3 h4 p1 p2 )_yv + = 1/2 * P( 2 ) * Sum ( h12 p11 p13 ) * y ( h3 h4 h12 p1 p11 p13 )_y * i1 ( p11 p13 h12 p2 )_v
      IMPLICIT NONE
#include "global.fh"
#include "mafdecls.fh"
#include "sym.fh"
#include "errquit.fh"
#include "tce.fh"
      INTEGER d_a
      INTEGER k_a_offset
      INTEGER d_b
      INTEGER k_b_offset
      INTEGER d_c
      INTEGER k_c_offset
      INTEGER NXTASK
      INTEGER next
      INTEGER nprocs
      INTEGER count
      INTEGER h3b
      INTEGER h4b
      INTEGER p1b
      INTEGER p2b
      INTEGER dimc
      INTEGER l_c_sort
      INTEGER k_c_sort
      INTEGER h12b
      INTEGER p11b
      INTEGER p13b
      INTEGER h3b_1
      INTEGER h4b_1
      INTEGER h12b_1
      INTEGER p1b_1
      INTEGER p11b_1
      INTEGER p13b_1
      INTEGER p11b_2
      INTEGER p13b_2
      INTEGER p2b_2
      INTEGER h12b_2
      INTEGER dim_common
      INTEGER dima_sort
      INTEGER dima
      INTEGER dimb_sort
      INTEGER dimb
      INTEGER l_a_sort
      INTEGER k_a_sort
      INTEGER l_a
      INTEGER k_a
      INTEGER l_b_sort
      INTEGER k_b_sort
      INTEGER l_b
      INTEGER k_b
      INTEGER nsubp(2)
      INTEGER isubp
      INTEGER l_c
      INTEGER k_c
      DOUBLE PRECISION FACTORIAL
      EXTERNAL NXTASK
      EXTERNAL FACTORIAL
      nprocs = GA_NNODES()
      count = 0
      next = NXTASK(nprocs,1)
      DO h3b = 1,noab
      DO h4b = h3b,noab
      DO p1b = noab+1,noab+nvab
      DO p2b = noab+1,noab+nvab
      IF (next.eq.count) THEN
      IF ((.not.restricted).or.(int_mb(k_spin+h3b-1)+int_mb(k_spin+h4b-1
     &)+int_mb(k_spin+p1b-1)+int_mb(k_spin+p2b-1).ne.8)) THEN
      IF (int_mb(k_spin+h3b-1)+int_mb(k_spin+h4b-1) .eq. int_mb(k_spin+p
     &1b-1)+int_mb(k_spin+p2b-1)) THEN
      IF (ieor(int_mb(k_sym+h3b-1),ieor(int_mb(k_sym+h4b-1),ieor(int_mb(
     &k_sym+p1b-1),int_mb(k_sym+p2b-1)))) .eq. ieor(irrep_y,irrep_v)) TH
     &EN
      dimc = int_mb(k_range+h3b-1) * int_mb(k_range+h4b-1) * int_mb(k_ra
     &nge+p1b-1) * int_mb(k_range+p2b-1)
      IF (.not.MA_PUSH_GET(mt_dbl,dimc,'noname',l_c_sort,k_c_sort)) CALL
     & ERRQUIT('ccsdt_lambda2_12',0,MA_ERR)
      CALL DFILL(dimc,0.0d0,dbl_mb(k_c_sort),1)
      DO h12b = 1,noab
      DO p11b = noab+1,noab+nvab
      DO p13b = p11b,noab+nvab
      IF (int_mb(k_spin+h3b-1)+int_mb(k_spin+h4b-1)+int_mb(k_spin+h12b-1
     &) .eq. int_mb(k_spin+p1b-1)+int_mb(k_spin+p11b-1)+int_mb(k_spin+p1
     &3b-1)) THEN
      IF (ieor(int_mb(k_sym+h3b-1),ieor(int_mb(k_sym+h4b-1),ieor(int_mb(
     &k_sym+h12b-1),ieor(int_mb(k_sym+p1b-1),ieor(int_mb(k_sym+p11b-1),i
     &nt_mb(k_sym+p13b-1)))))) .eq. irrep_y) THEN
      CALL TCE_RESTRICTED_6(h3b,h4b,h12b,p1b,p11b,p13b,h3b_1,h4b_1,h12b_
     &1,p1b_1,p11b_1,p13b_1)
      CALL TCE_RESTRICTED_4(p11b,p13b,p2b,h12b,p11b_2,p13b_2,p2b_2,h12b_
     &2)
      dim_common = int_mb(k_range+h12b-1) * int_mb(k_range+p11b-1) * int
     &_mb(k_range+p13b-1)
      dima_sort = int_mb(k_range+h3b-1) * int_mb(k_range+h4b-1) * int_mb
     &(k_range+p1b-1)
      dima = dim_common * dima_sort
      dimb_sort = int_mb(k_range+p2b-1)
      dimb = dim_common * dimb_sort
      IF ((dima .gt. 0) .and. (dimb .gt. 0)) THEN
      IF (.not.MA_PUSH_GET(mt_dbl,dima,'noname',l_a_sort,k_a_sort)) CALL
     & ERRQUIT('ccsdt_lambda2_12',1,MA_ERR)
      IF (.not.MA_PUSH_GET(mt_dbl,dima,'noname',l_a,k_a)) CALL ERRQUIT('
     &ccsdt_lambda2_12',2,MA_ERR)
      IF ((h12b .lt. h3b) .and. (p13b .lt. p1b)) THEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p1b_1
     & - noab - 1 + nvab * (p13b_1 - noab - 1 + nvab * (p11b_1 - noab - 
     &1 + nvab * (h4b_1 - 1 + noab * (h3b_1 - 1 + noab * (h12b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h12b-1
     &),int_mb(k_range+h3b-1),int_mb(k_range+h4b-1),int_mb(k_range+p11b-
     &1),int_mb(k_range+p13b-1),int_mb(k_range+p1b-1),6,3,2,5,4,1,1.0d0)
      END IF
      IF ((h12b .lt. h3b) .and. (p11b .lt. p1b) .and. (p1b .le. p13b)) T
     &HEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p13b_
     &1 - noab - 1 + nvab * (p1b_1 - noab - 1 + nvab * (p11b_1 - noab - 
     &1 + nvab * (h4b_1 - 1 + noab * (h3b_1 - 1 + noab * (h12b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h12b-1
     &),int_mb(k_range+h3b-1),int_mb(k_range+h4b-1),int_mb(k_range+p11b-
     &1),int_mb(k_range+p1b-1),int_mb(k_range+p13b-1),5,3,2,6,4,1,-1.0d0
     &)
      END IF
      IF ((h12b .lt. h3b) .and. (p1b .le. p11b)) THEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p13b_
     &1 - noab - 1 + nvab * (p11b_1 - noab - 1 + nvab * (p1b_1 - noab - 
     &1 + nvab * (h4b_1 - 1 + noab * (h3b_1 - 1 + noab * (h12b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h12b-1
     &),int_mb(k_range+h3b-1),int_mb(k_range+h4b-1),int_mb(k_range+p1b-1
     &),int_mb(k_range+p11b-1),int_mb(k_range+p13b-1),4,3,2,6,5,1,1.0d0)
      END IF
      IF ((h3b .le. h12b) .and. (h12b .lt. h4b) .and. (p13b .lt. p1b)) T
     &HEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p1b_1
     & - noab - 1 + nvab * (p13b_1 - noab - 1 + nvab * (p11b_1 - noab - 
     &1 + nvab * (h4b_1 - 1 + noab * (h12b_1 - 1 + noab * (h3b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h3b-1)
     &,int_mb(k_range+h12b-1),int_mb(k_range+h4b-1),int_mb(k_range+p11b-
     &1),int_mb(k_range+p13b-1),int_mb(k_range+p1b-1),6,3,1,5,4,2,-1.0d0
     &)
      END IF
      IF ((h3b .le. h12b) .and. (h12b .lt. h4b) .and. (p11b .lt. p1b) .a
     &nd. (p1b .le. p13b)) THEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p13b_
     &1 - noab - 1 + nvab * (p1b_1 - noab - 1 + nvab * (p11b_1 - noab - 
     &1 + nvab * (h4b_1 - 1 + noab * (h12b_1 - 1 + noab * (h3b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h3b-1)
     &,int_mb(k_range+h12b-1),int_mb(k_range+h4b-1),int_mb(k_range+p11b-
     &1),int_mb(k_range+p1b-1),int_mb(k_range+p13b-1),5,3,1,6,4,2,1.0d0)
      END IF
      IF ((h3b .le. h12b) .and. (h12b .lt. h4b) .and. (p1b .le. p11b)) T
     &HEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p13b_
     &1 - noab - 1 + nvab * (p11b_1 - noab - 1 + nvab * (p1b_1 - noab - 
     &1 + nvab * (h4b_1 - 1 + noab * (h12b_1 - 1 + noab * (h3b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h3b-1)
     &,int_mb(k_range+h12b-1),int_mb(k_range+h4b-1),int_mb(k_range+p1b-1
     &),int_mb(k_range+p11b-1),int_mb(k_range+p13b-1),4,3,1,6,5,2,-1.0d0
     &)
      END IF
      IF ((h4b .le. h12b) .and. (p13b .lt. p1b)) THEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p1b_1
     & - noab - 1 + nvab * (p13b_1 - noab - 1 + nvab * (p11b_1 - noab - 
     &1 + nvab * (h12b_1 - 1 + noab * (h4b_1 - 1 + noab * (h3b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h3b-1)
     &,int_mb(k_range+h4b-1),int_mb(k_range+h12b-1),int_mb(k_range+p11b-
     &1),int_mb(k_range+p13b-1),int_mb(k_range+p1b-1),6,2,1,5,4,3,1.0d0)
      END IF
      IF ((h4b .le. h12b) .and. (p11b .lt. p1b) .and. (p1b .le. p13b)) T
     &HEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p13b_
     &1 - noab - 1 + nvab * (p1b_1 - noab - 1 + nvab * (p11b_1 - noab - 
     &1 + nvab * (h12b_1 - 1 + noab * (h4b_1 - 1 + noab * (h3b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h3b-1)
     &,int_mb(k_range+h4b-1),int_mb(k_range+h12b-1),int_mb(k_range+p11b-
     &1),int_mb(k_range+p1b-1),int_mb(k_range+p13b-1),5,2,1,6,4,3,-1.0d0
     &)
      END IF
      IF ((h4b .le. h12b) .and. (p1b .le. p11b)) THEN
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(p13b_
     &1 - noab - 1 + nvab * (p11b_1 - noab - 1 + nvab * (p1b_1 - noab - 
     &1 + nvab * (h12b_1 - 1 + noab * (h4b_1 - 1 + noab * (h3b_1 - 1))))
     &)))
      CALL TCE_SORT_6(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+h3b-1)
     &,int_mb(k_range+h4b-1),int_mb(k_range+h12b-1),int_mb(k_range+p1b-1
     &),int_mb(k_range+p11b-1),int_mb(k_range+p13b-1),4,2,1,6,5,3,1.0d0)
      END IF
      IF (.not.MA_POP_STACK(l_a)) CALL ERRQUIT('ccsdt_lambda2_12',3,MA_E
     &RR)
      IF (.not.MA_PUSH_GET(mt_dbl,dimb,'noname',l_b_sort,k_b_sort)) CALL
     & ERRQUIT('ccsdt_lambda2_12',4,MA_ERR)
      IF (.not.MA_PUSH_GET(mt_dbl,dimb,'noname',l_b,k_b)) CALL ERRQUIT('
     &ccsdt_lambda2_12',5,MA_ERR)
      CALL GET_HASH_BLOCK(d_b,dbl_mb(k_b),dimb,int_mb(k_b_offset),(h12b_
     &2 - 1 + noab * (p2b_2 - noab - 1 + nvab * (p13b_2 - noab - 1 + nva
     &b * (p11b_2 - noab - 1)))))
      CALL TCE_SORT_4(dbl_mb(k_b),dbl_mb(k_b_sort),int_mb(k_range+p11b-1
     &),int_mb(k_range+p13b-1),int_mb(k_range+p2b-1),int_mb(k_range+h12b
     &-1),3,2,1,4,1.0d0)
      IF (.not.MA_POP_STACK(l_b)) CALL ERRQUIT('ccsdt_lambda2_12',6,MA_E
     &RR)
      nsubp(1) = 1
      nsubp(2) = 1
      isubp = 1
      IF (p11b .eq. p13b) THEN
      nsubp(isubp) = nsubp(isubp) + 1
      ELSE
      isubp = isubp + 1
      END IF
      CALL DGEMM('T','N',dima_sort,dimb_sort,dim_common,2.0d0/FACTORIAL(
     &nsubp(1))/FACTORIAL(nsubp(2)),dbl_mb(k_a_sort),dim_common,dbl_mb(k
     &_b_sort),dim_common,1.0d0,dbl_mb(k_c_sort),dima_sort)
      IF (.not.MA_POP_STACK(l_b_sort)) CALL ERRQUIT('ccsdt_lambda2_12',7
     &,MA_ERR)
      IF (.not.MA_POP_STACK(l_a_sort)) CALL ERRQUIT('ccsdt_lambda2_12',8
     &,MA_ERR)
      END IF
      END IF
      END IF
      END DO
      END DO
      END DO
      IF (.not.MA_PUSH_GET(mt_dbl,dimc,'noname',l_c,k_c)) CALL ERRQUIT('
     &ccsdt_lambda2_12',9,MA_ERR)
      IF ((p1b .le. p2b)) THEN
      CALL TCE_SORT_4(dbl_mb(k_c_sort),dbl_mb(k_c),int_mb(k_range+p2b-1)
     &,int_mb(k_range+p1b-1),int_mb(k_range+h4b-1),int_mb(k_range+h3b-1)
     &,4,3,2,1,1.0d0/2.0d0)
      CALL ADD_HASH_BLOCK(d_c,dbl_mb(k_c),dimc,int_mb(k_c_offset),(p2b -
     & noab - 1 + nvab * (p1b - noab - 1 + nvab * (h4b - 1 + noab * (h3b
     & - 1)))))
      END IF
      IF ((p2b .le. p1b)) THEN
      CALL TCE_SORT_4(dbl_mb(k_c_sort),dbl_mb(k_c),int_mb(k_range+p2b-1)
     &,int_mb(k_range+p1b-1),int_mb(k_range+h4b-1),int_mb(k_range+h3b-1)
     &,4,3,1,2,-1.0d0/2.0d0)
      CALL ADD_HASH_BLOCK(d_c,dbl_mb(k_c),dimc,int_mb(k_c_offset),(p1b -
     & noab - 1 + nvab * (p2b - noab - 1 + nvab * (h4b - 1 + noab * (h3b
     & - 1)))))
      END IF
      IF (.not.MA_POP_STACK(l_c)) CALL ERRQUIT('ccsdt_lambda2_12',10,MA_
     &ERR)
      IF (.not.MA_POP_STACK(l_c_sort)) CALL ERRQUIT('ccsdt_lambda2_12',1
     &1,MA_ERR)
      END IF
      END IF
      END IF
      next = NXTASK(nprocs,1)
      END IF
      count = count + 1
      END DO
      END DO
      END DO
      END DO
      next = NXTASK(-nprocs,1)
      call GA_SYNC()
      RETURN
      END
