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A031948 as a simple table

na(n)
13
25
36
47
59
610
712
814
916
1017
1118
1220
1322
1423
1524
1625
1727
1828
1930
2031
2136
2237
2339
2441
2543
2644
2749
2850
2952
3053
3154
3256
3360
3462
3567
3668
3770
3871
3972
4074
4176
4277
4378
4479
4581
4682
4784
4885
4990
5091
5193
5294
53108
54109
55111
56112
57117
58118
59120
60122

[3,5,6,7,9,10,12,14,16,17,18,20,22,23,24,25,27,28,
 30,31,36,37,39,41,43,44,49,50,52,53,54,56,60,62,
 67,68,70,71,72,74,76,77,78,79,81,82,84,85,90,91,
 93,94,108,109,111,112,117,118,120,122]