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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A028745 as a simple table

na(n)
12
23
35
46
57
68
710
811
912
1013
1114
1215
1318
1419
1520
1621
1722
1823
1924
2026
2127
2228
2329
2430
2531

[2,3,5,6,7,8,10,11,12,13,14,15,18,19,20,21,22,23,
 24,26,27,28,29,30,31]