login

A052701 as a simple table

na(n)
00
11
22
38
440
5224
61344
78448
854912
9366080
102489344
1117199104
12120393728
13852017152
146085836800
1543818024960
16317680680960
172317200261120
1816992801914880
19125210119372800
20926554883358720
216882979133521920

[0,1,2,8,40,224,1344,8448,54912,366080,2489344,
 17199104,120393728,852017152,6085836800,
 43818024960,317680680960,2317200261120,
 16992801914880,125210119372800,926554883358720,
 6882979133521920]