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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”).

A287684 as a simple table

na(n)
11
22
34
413
516
619
725
844
955
1064
1169
12183
13241
14290
15345
16398
17410
18423
19860
201287
212398
222553
233109

[1,2,4,13,16,19,25,44,55,64,69,183,241,290,345,
 398,410,423,860,1287,2398,2553,3109]