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A161989 as a simple table

na(n)
10
21
32
44
57
68
711
813
914
1015
1116
1219
1321
1422
1523
1625
1726
1827
1928
2029
2130
2231
2332
2435
2537
2638
2739
2841
2942
3043
3144
3245
3346
3447
3549
3650
3751
3852
3953
4054
4155
4256
4357
4458
4559
4660
4761
4862
4963
5064
5167
5269
5370
5471
5573
5674
5775
5876
5977
6078
6179
6281
6382
6483
6584
6685
6786
6887
6988
7089
7190

[0,1,2,4,7,8,11,13,14,15,16,19,21,22,23,25,26,27,
 28,29,30,31,32,35,37,38,39,41,42,43,44,45,46,47,
 49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,
 67,69,70,71,73,74,75,76,77,78,79,81,82,83,84,85,
 86,87,88,89,90]