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”).

A299699 as a simple table

na(n)
11
24
313
450
5179
6744
72975
813020
957215
10265172
111245355

[1,4,13,50,179,744,2975,13020,57215,265172,
 1245355]