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A151986 as a simple table

na(n)
11
22
34
47
510
613
720
822
942
1043
1164
1265
13146
14147
15203
16239
17412
18413
19414
20415

[1,2,4,7,10,13,20,22,42,43,64,65,146,147,203,239,
 412,413,414,415]