A208654 - cp's OEIS frontend

A208654 Number of palindromic paths through the subset array of {1,2,...,n}; see Comments.

n	a(n)
1	1
2	2
3	18
4	144
5	12000
6	540000
7	388962000
8	108425318400
9	650403212820480
10	1175952237465600000
11	57409367332363200000000
12	691636564481660937216000000
13	270540272566435932512004833280000

[1, 2, 18, 144, 12000, 540000, 388962000, 108425318400, 650403212820480, 1175952237465600000, 57409367332363200000000, 691636564481660937216000000, 270540272566435932512004833280000]

cp's OEIS Frontend

A208654 Number of palindromic paths through the subset array of {1,2,...,n}; see Comments.

Table of values

List of values