login

A007701 as a simple table

na(n)
00
11
28
3432
4131072
5204800000
61565515579392
756593444029595648
89444732965739290427392
97146646609494406531041460224
1024178516392292583494123520000000000

[0,1,8,432,131072,204800000,1565515579392,
 56593444029595648,9444732965739290427392,
 7146646609494406531041460224,
 24178516392292583494123520000000000]