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A161271 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
102
111
122
131
142
153
163
173
185
194
207
217
227
238
2411
2511
2612
2714
2815
2916
3020
3119
3223
3325
3428
3531
3636
3736
3843
3946
4053
4156
4266
4367
4477
4583
4690
4798
48109
49115
50128
51136
52149
53159
54176
55187
56206
57218
58236
59254
60278
61293
62321
63342
64367
65393
66425
67450
68485
69518
70556
71592
72635
73675
74723
75770

[0,0,0,0,0,0,0,0,0,2,1,2,1,2,3,3,3,5,4,7,7,7,8,11,
 11,12,14,15,16,20,19,23,25,28,31,36,36,43,46,53,
 56,66,67,77,83,90,98,109,115,128,136,149,159,176,
 187,206,218,236,254,278,293,321,342,367,393,425,
 450,485,518,556,592,635,675,723,770]