login

A057966 as a simple table

na(n)
51
6156
715
814196
92730
10140
11984256
12283920
1329120
141050
1557578976
1622145760
173407040
18245700
196951
202994106752
211439474400
22295276800
2331941000
241807260
2542525
26142719088512
2782337935680
2821112291200
293045042000
30258438180

[1,156,15,14196,2730,140,984256,283920,29120,1050,
 57578976,22145760,3407040,245700,6951,2994106752,
 1439474400,295276800,31941000,1807260,42525,
 142719088512,82337935680,21112291200,3045042000,
 258438180]