login

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

A155224 as a simple table

na(n)
21
34
413
528
6111
7977
87280
955365
10714096
1113471597
12269297226
136772718447
14245090678582
1511547321954885
16661077498433706
1749292298477002834
184904773608293842400

[1,4,13,28,111,977,7280,55365,714096,13471597,
 269297226,6772718447,245090678582,11547321954885,
 661077498433706,49292298477002834,
 4904773608293842400]