login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A169092 as a simple table

na(n)
01
131
2930
327900
4837000
525110000
6753300000
722599000000
8677970000000
920339100000000
10610173000000000
1118305190000000000
12549155700000000000
1316474671000000000000
14494240130000000000000
1514827203900000000000000

[1,31,930,27900,837000,25110000,753300000,
 22599000000,677970000000,20339100000000,
 610173000000000,18305190000000000,
 549155700000000000,16474671000000000000,
 494240130000000000000,14827203900000000000000]