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A004715 as a simple table

na(n)
13
26
38
49
510
613
721
823
927
1028
1129
1231
1332
1435
1536
1637
1739
1840
1941
2042
2143
2246
2347
2452
2557
2658
2761
2862
2965
3067
3169
3270
3372
3476
3580
3681
3782
3883
3985
4086
4188
4289
4391
4492
4594
4696
4797
4898
49102
50103
51105
52107
53111
54112

[3,6,8,9,10,13,21,23,27,28,29,31,32,35,36,37,39,
 40,41,42,43,46,47,52,57,58,61,62,65,67,69,70,72,
 76,80,81,82,83,85,86,88,89,91,92,94,96,97,98,102,
 103,105,107,111,112]