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”).

A225738 as a simple table

na(n)
100
111
121
133
144
154
167
1714
1821
1929
2052
2189
22155
23284
24528
251018
262046
274282
289272
2921466
3050967

[0,1,1,3,4,4,7,14,21,29,52,89,155,284,528,1018,
 2046,4282,9272,21466,50967]