login

A255432 as a simple table

na(n)
01
11
22
34
412
536
6160
7680
84368
924976
10219616
111599104
1218145600
13160805568
142245960704
1523437238656
16389201754368
174669754525952
1889893314615808
191218303508421632
2026673872401980416
21402798557886395392
229883555312758398976

[1,1,2,4,12,36,160,680,4368,24976,219616,1599104,
 18145600,160805568,2245960704,23437238656,
 389201754368,4669754525952,89893314615808,
 1218303508421632,26673872401980416,
 402798557886395392,9883555312758398976]