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A026457 as a simple table

na(n)
12
24
35
47
59
610
711
813
914
1015
1117
1219
1321
1422
1523
1625
1727
1829
1930
2031
2135
2237
2339
2441
2545
2646
2747
2849
2951
3055
3157
3259
3362
3464
3565
3667
3769
3870
3971
4077
4178
4279
4381
4484
4585
4687
4791
4894
4995
5099
51101
52102
53104
54105
55107
56109
57110
58111
59119

[2,4,5,7,9,10,11,13,14,15,17,19,21,22,23,25,27,29,
 30,31,35,37,39,41,45,46,47,49,51,55,57,59,62,64,
 65,67,69,70,71,77,78,79,81,84,85,87,91,94,95,99,
 101,102,104,105,107,109,110,111,119]