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A113498 as a simple table

na(n)
21
32
43
54
66
77
88
99
1013
1112
1214
1315
1421
1519
1624
1721
1829
1928
2030
2128
2240
2335
2441
2542
2646
2741
2853
2944
3059
3152
3261
3355
3479
3555
3669
3766
3886
3970
4090
4173
4294
4393
4491
4581
46121
4788
48114
49103
50123
5195
52137
53102
54138
55122
56132
57114
58168
59121
60144
61145
62159
63137
64180

[1,2,3,4,6,7,8,9,13,12,14,15,21,19,24,21,29,28,30,
 28,40,35,41,42,46,41,53,44,59,52,61,55,79,55,69,
 66,86,70,90,73,94,93,91,81,121,88,114,103,123,95,
 137,102,138,122,132,114,168,121,144,145,159,137,
 180]