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A193533 as a simple table

na(n)
12
23
35
46
57
68
79
810
912
1013
1114
1215
1317
1418
1521
1622
1723
1824
1926
2027
2128
2230
2332
2433
2534
2635
2736
2837
2938
3039
3140
3241
3342
3443
3544
3646
3747
3848
3949
4050
4151
4252
4353
4454
4555
4656
4757
4858
4960
5061
5162
5263
5365
5466
5567
5668
5769
5870
5972
6073
6174
6275
6376
6477
6578
6680

[2,3,5,6,7,8,9,10,12,13,14,15,17,18,21,22,23,24,
 26,27,28,30,32,33,34,35,36,37,38,39,40,41,42,43,
 44,46,47,48,49,50,51,52,53,54,55,56,57,58,60,61,
 62,63,65,66,67,68,69,70,72,73,74,75,76,77,78,80]