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A131470 as a simple table

na(n)
12
23
32
45
53
64
73
89
95
106
114
127
135
145
154
1617
179
1810
197
2011
218
228
236
2413
259
269
277
2810
298
308
317
3233
3317
3418
3512
3619
3713
3813
3910
4021
4114
4215
4311
4415
4512
4612
4710
4825
4917
5017
5113
5218
5314
5414
5512
5619
5715
5815
5912
6016
6113
6213
6311
6465
6533
6634
6723

[2,3,2,5,3,4,3,9,5,6,4,7,5,5,4,17,9,10,7,11,8,8,6,
 13,9,9,7,10,8,8,7,33,17,18,12,19,13,13,10,21,14,
 15,11,15,12,12,10,25,17,17,13,18,14,14,12,19,15,
 15,12,16,13,13,11,65,33,34,23]