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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”).

A065003 as a simple table

na(n)
11
22
33
44
55
67
78
810
911
1013
1114
1216
1317
1419
1522
1623
1725
1828
1931
2034
2137
2243

[1,2,3,4,5,7,8,10,11,13,14,16,17,19,22,23,25,28,
 31,34,37,43]