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A198045 as a simple table

na(n)
12
23
35
46
57
68
79
811
912
1013
1115
1217
1319
1420
1521
1623
1724
1828
1929
2031
2133
2236
2337
2439
2541
2643
2744
2847
2951
3052
3153
3254
3357
3459
3560
3661
3767
3868
3969
4071
4173
4276
4379
4480
4583
4684
4787
4889
4990
5092
5193
5296
5397
54101
55103
56107
57109
58111
59113
60116
61120
62123
63124
64126

[2,3,5,6,7,8,9,11,12,13,15,17,19,20,21,23,24,28,
 29,31,33,36,37,39,41,43,44,47,51,52,53,54,57,59,
 60,61,67,68,69,71,73,76,79,80,83,84,87,89,90,92,
 93,96,97,101,103,107,109,111,113,116,120,123,124,
 126]