ly.
     </P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>maxvalue</I
></TT
><BR><TT
CLASS="LITERAL"
>NO MAXVALUE</TT
></DT
><DD
><P
>      The optional clause <TT
CLASS="LITERAL"
>MAXVALUE <TT
CLASS="REPLACEABLE"
><I
>maxvalue</I
></TT
></TT
> determines
      the maximum value for the sequence. If this clause is not
      supplied or <TT
CLASS="OPTION"
>NO MAXVALUE</TT
> is specified, then
      default values will be used.  The defaults are
      2<SUP
>63</SUP
>-1 and -1 for ascending and descending
      s