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A064052 as a simple table

na(n)
12
23
35
46
57
610
711
813
914
1015
1117
1219
1320
1421
1522
1623
1726
1828
1929
2031
2133
2234
2335
2437
2538
2639
2741
2842
2943
3044
3146
3247
3351
3452
3553
3655
3757
3858
3959
4061
4162
4265
4366
4467
4568
4669
4771
4873
4974
5076
5177
5278
5379
5482
5583
5685
5786
5887
5988
6089
6191
6292
6393
6494
6595
6697
6799
68101
69102

[2,3,5,6,7,10,11,13,14,15,17,19,20,21,22,23,26,28,
 29,31,33,34,35,37,38,39,41,42,43,44,46,47,51,52,
 53,55,57,58,59,61,62,65,66,67,68,69,71,73,74,76,
 77,78,79,82,83,85,86,87,88,89,91,92,93,94,95,97,
 99,101,102]