Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fibonacci Numbers which are Products of two Pell Numbers   In this paper, we find all Fibonacci numbers which are products of two Pell
numbers and all Pell numbers which are products of two Fibonacci numbers.

26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat