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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”).

A002567 as a simple table

na(n)
11
21
31
42
52
617
71
891
916
101
111
12105
134
1455
151314
1616
172
1828

[1,1,1,2,2,17,1,91,16,1,1,105,4,55,1314,16,2,28]