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A139556 as a simple table

na(n)
11
21
33
44
510
66
715
816
927
1020
1139
1224
1350
1442
1546
1649
1779
1854
1996
2080
2196
2274
23115
2496
25133
26120
27151
28153
29190
30120
31219
32220
33232
34203
35245
36181
37282
38238
39267
40227
41319
42252
43360
44330
45334
46318
47403
48349
49443
50407
51443
52424
53499
54451
55511
56434
57494
58461

[1,1,3,4,10,6,15,16,27,20,39,24,50,42,46,49,79,54,
 96,80,96,74,115,96,133,120,151,153,190,120,219,
 220,232,203,245,181,282,238,267,227,319,252,360,
 330,334,318,403,349,443,407,443,424,499,451,511,
 434,494,461]