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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”).

A147351 as a simple table

na(n)
11
21
31
41
51
61
71
83
913
1021
1143
1269
13199
14467
151790
164987

[1,1,1,1,1,1,1,3,13,21,43,69,199,467,1790,4987]