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A121996 as a simple table

na(n)
10
21
32
44
55
68
79
810
913
1016
1117
1218
1320
1421
1522
1624
1725
1826
1928
2029
2130
2232
2333
2434
2536
2637
2738
2840
2941
3042
3144
3245
3346
3448
3549
3650
3752
3853
3954
4056
4157
4258
4360
4461
4562
4664
4765
4866
4968
5069
5170
5272
5373
5474
5576
5677
5778
5880
5981
6082
6184
6285
6386
6488
6589
6690
6792
6893
6994
7096
7197
7298

[0,1,2,4,5,8,9,10,13,16,17,18,20,21,22,24,25,26,
 28,29,30,32,33,34,36,37,38,40,41,42,44,45,46,48,
 49,50,52,53,54,56,57,58,60,61,62,64,65,66,68,69,
 70,72,73,74,76,77,78,80,81,82,84,85,86,88,89,90,
 92,93,94,96,97,98]