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A107681 as a simple table

na(n)
10
21
30
41
53
64
70
81
93
104
119
1210
1312
1413
150
161
173
184
199
2010
2112
2213
2327
2428
2530
2631
2736
2837
2939
3040
310
321
333
344
359
3610
3712
3813
3927
4028
4130
4231
4336
4437
4539
4640
4781
4882
4984
5085
5190
5291
5393
5494
55108
56109
57111
58112
59117
60118
61120
62121
630
641
653
664
679
6810
6912
7013
7127
7228
7330
7431
7536
7637

[0,1,0,1,3,4,0,1,3,4,9,10,12,13,0,1,3,4,9,10,12,
 13,27,28,30,31,36,37,39,40,0,1,3,4,9,10,12,13,27,
 28,30,31,36,37,39,40,81,82,84,85,90,91,93,94,108,
 109,111,112,117,118,120,121,0,1,3,4,9,10,12,13,27,
 28,30,31,36,37]