login

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

A290903 as a simple table

na(n)
05
135
2240
31645
411275
577280
6529685
73630515
824883920
9170556925
101169014555
118012544960
1254918800165
13376419056195
142580014593200
1517683683096205
16121205767080235
17830756686465440
185694091038177845
1939027880580779475
20267501073027278480

[5,35,240,1645,11275,77280,529685,3630515,
 24883920,170556925,1169014555,8012544960,
 54918800165,376419056195,2580014593200,
 17683683096205,121205767080235,830756686465440,
 5694091038177845,39027880580779475,
 267501073027278480]