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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”).

A085921 as a simple table

na(n)
11
22
33
45
56
68
710
811
914
1016
1117
1218
1319
1421
1522
1624
1725
1829
1930
2032
2133
2234
2335
2437

[1,2,3,5,6,8,10,11,14,16,17,18,19,21,22,24,25,29,
 30,32,33,34,35,37]