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A153238 as a simple table

na(n)
13
26
39
411
512
615
716
818
921
1023
1124
1226
1327
1430
1531
1633
1736
1837
1939
2041
2142
2244
2345
2446
2548
2651
2754
2856
2957
3058
3159
3260
3361
3463
3565
3666
3769
3870
3971
4072
4175
4276
4378
4479
4581
4683
4784
4886
4987
5090
5191
5292
5393
5496
5599
56100
57101
58102
59103
60105
61106
62107
63108
64109
65111
66114

[3,6,9,11,12,15,16,18,21,23,24,26,27,30,31,33,36,
 37,39,41,42,44,45,46,48,51,54,56,57,58,59,60,61,
 63,65,66,69,70,71,72,75,76,78,79,81,83,84,86,87,
 90,91,92,93,96,99,100,101,102,103,105,106,107,108,
 109,111,114]