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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]