login

A207454 as a simple table

na(n)
16
236
390
4330
51008
63354
710710
834884
9112530
10364722
111179360
123817938
1312352782
1439978180
15129366090
16418647162
171354755024
184384104618
1914187219750
2045910873476
21148570600866
22480784736226
231555851810240
245034842671650

[6,36,90,330,1008,3354,10710,34884,112530,364722,
 1179360,3817938,12352782,39978180,129366090,
 418647162,1354755024,4384104618,14187219750,
 45910873476,148570600866,480784736226,
 1555851810240,5034842671650]