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A008507 as a simple table

na(n)
10
20
30
41
51
62
72
83
95
105
117
128
138
149
1511
1613
1713
1815
1916
2016
2118
2219
2321
2424
2525
2625
2726
2826
2927
3033
3134
3236
3336
3440
3540
3642
3744
3845
3947
4049
4149
4253
4353
4454
4554
4659
4764
4865
4965
5066
5168
5268
5372
5474
5576
5678
5778
5880
5981
6081
6185
6291
6392
6492
6593
6699
67101
68105
69105
70106
71108
72111
73113
74115
75116
76118

[0,0,0,1,1,2,2,3,5,5,7,8,8,9,11,13,13,15,16,16,18,
 19,21,24,25,25,26,26,27,33,34,36,36,40,40,42,44,
 45,47,49,49,53,53,54,54,59,64,65,65,66,68,68,72,
 74,76,78,78,80,81,81,85,91,92,92,93,99,101,105,
 105,106,108,111,113,115,116,118]