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”).

A279197 as a simple table

na(n)
11
21
32
42
511
611
755
858
9486
10442
114218
123924
1345096
1442013
15538537
16505830
177368091

[1,1,2,2,11,11,55,58,486,442,4218,3924,45096,
 42013,538537,505830,7368091]