login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A181272 as a simple table

na(n)
10
20
34
4111
51793
632124
7513260
88397376
9133979600
102151884352
1134376925632
12550298217984
138799317537024
14140789221362688
152252143151246336
1636033204166164480
17576491512426680320
189223724397701578752

[0,0,4,111,1793,32124,513260,8397376,133979600,
 2151884352,34376925632,550298217984,8799317537024,
 140789221362688,2252143151246336,
 36033204166164480,576491512426680320,
 9223724397701578752]