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A120887 as a simple table

na(n)
11
22
32
43
54
65
73
84
96
108
117
128
138
149
158
168
1711
1812
1911
2012
2112
2213
2312
2413
2514
2616
2715
2818
2919
3020
3116
3217
3321
3421
3520
3621
3723
3824
3923
4024
4126
4227
4321
4422
4523
4624
4723
4824
4927
5029
5129
5229
5330
5431
5531
5632
5735
5836
5935
6036
6134
6235
6334
6437
6542
6643
6739
6840
6941
7041
7137
7238
7342
7443
7542

[1,2,2,3,4,5,3,4,6,8,7,8,8,9,8,8,11,12,11,12,12,
 13,12,13,14,16,15,18,19,20,16,17,21,21,20,21,23,
 24,23,24,26,27,21,22,23,24,23,24,27,29,29,29,30,
 31,31,32,35,36,35,36,34,35,34,37,42,43,39,40,41,
 41,37,38,42,43,42]