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A308308 as a simple table

na(n)
10
20
30
40
51
61
72
81
93
102
114
122
135
144
156
164
178
185
1910
206
2111
229
2313
247
2515
2612
2716
2811
2919
3011
3123
3216
3325
3419
3527
3615
3731
3823
3931
4021
4136
4221
4340
4428
4543
4633
4747
4826
4950
5036
5152
5238
5360
5436
5562
5645
5766
5852
5972
6036
6175
6258
6374
6456
6584
6649
6791
6864
6993
7065

[0,0,0,0,1,1,2,1,3,2,4,2,5,4,6,4,8,5,10,6,11,9,13,
 7,15,12,16,11,19,11,23,16,25,19,27,15,31,23,31,21,
 36,21,40,28,43,33,47,26,50,36,52,38,60,36,62,45,
 66,52,72,36,75,58,74,56,84,49,91,64,93,65]