login

A293246 as a simple table

na(n)
02
12
23
37
425
5121
6241
71681
813441
940321
10403201
112016001
123225601
1341932801
14609638401

[2,2,3,7,25,121,241,1681,13441,40321,403201,
 2016001,3225601,41932801,609638401]