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”).

A300599 as a simple table

na(n)
11
23
36
442
5615
616629
71056816
8125507384
931211394832
1015348688086725

[1,3,6,42,615,16629,1056816,125507384,31211394832,
 15348688086725]