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A047993 as a simple table

na(n)
11
20
31
41
51
61
73
82
94
104
116
127
1311
1411
1516
1619
1725
1829
1940
2045
2160
2270
2389
24105
25134
26156
27196
28232
29285
30336
31414
32485
33591
34696
35839
36987
371187
381389
391661
401946
412311
422702
433201
443731
454400
465126
476018
486997
498195
509502
5111093
5212849
5314949
5417281
5520062

[1,0,1,1,1,1,3,2,4,4,6,7,11,11,16,19,25,29,40,45,
 60,70,89,105,134,156,196,232,285,336,414,485,591,
 696,839,987,1187,1389,1661,1946,2311,2702,3201,
 3731,4400,5126,6018,6997,8195,9502,11093,12849,
 14949,17281,20062]