Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some remarks and conjectures about Hankel determinants of polynomials
  which are related to Motzkin paths   This note collects some results and conjectures for the generating functions
of the Hankel determinants of certain polynomials which are related to Motzkin
paths.

21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat