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A001996 as a simple table

na(n)
01
10
21
31
42
52
64
74
86
97
1010
1111
1216
1317
1423
1526
1633
1737
1847
1952
2064
2172
2286
2396
24115
25127
26149
27166
28192
29212
30245
31269
32307
33338
34382
35419
36472
37515
38576
39629
40699
41760
42843
43913
441007
451091
461197
471293
481416
491525
501663
511790
521945
532088
542265
552426

[1,0,1,1,2,2,4,4,6,7,10,11,16,17,23,26,33,37,47,
 52,64,72,86,96,115,127,149,166,192,212,245,269,
 307,338,382,419,472,515,576,629,699,760,843,913,
 1007,1091,1197,1293,1416,1525,1663,1790,1945,2088,
 2265,2426]