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”).

A219149 as a simple table

na(n)
11
24
332
4531
520400
61707676
7313358793
8126050637852
9111079912880127
10214001518780274766

[1,4,32,531,20400,1707676,313358793,126050637852,
 111079912880127,214001518780274766]