login

A111454 as a simple table

na(n)
40
50
60
718
8400
97850
10162288
113667650
1291171008
132486784402
1474062575400
152395420006034
1683695120256592
173143661612445146
18126375169532421600
195415486851106043650
20246486713303685957376

[0,0,0,18,400,7850,162288,3667650,91171008,
 2486784402,74062575400,2395420006034,
 83695120256592,3143661612445146,
 126375169532421600,5415486851106043650,
 246486713303685957376]