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”).

A217807 as a simple table

na(n)
11
24
329
4292
53620
651866
7827415
814350467
9266218320

[1,4,29,292,3620,51866,827415,14350467,266218320]