login

A211341 as a simple table

na(n)
10
20
31
44
51
696
7289
8512
925281
10265600
112391001
1236972288
13405301681
1421023744
1554720993825
161244339070976
1713293650868481
18324381631315968
192266027617084841
2014819020931072000
21896776708870156401

[0,0,1,4,1,96,289,512,25281,265600,2391001,
 36972288,405301681,21023744,54720993825,
 1244339070976,13293650868481,324381631315968,
 2266027617084841,14819020931072000,
 896776708870156401]