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A081247 as a simple table

na(n)
10
20
31
42
53
61
70
85
94
103
113
127
132
144
154
1610
173
186
195
2012
214
223
236
2416
259
266
277
2813
2910
3010
317
3216
336
349
358
3625
379
389
3910
4022
4113
4213
4312
4419
4510
469
4716
4829
4910
5016
5114
5224
5310
5421
5517
5631
579
5813
5920
6037
6116
6214
6318
6430
6518
6620
6721
6835
6913
7016
7127
7249
7321
7415
7513
7642
7722
7825
7919
8039
8126

[0,0,1,2,3,1,0,5,4,3,3,7,2,4,4,10,3,6,5,12,4,3,6,
 16,9,6,7,13,10,10,7,16,6,9,8,25,9,9,10,22,13,13,
 12,19,10,9,16,29,10,16,14,24,10,21,17,31,9,13,20,
 37,16,14,18,30,18,20,21,35,13,16,27,49,21,15,13,
 42,22,25,19,39,26]