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A162407 as a simple table

na(n)
01
12
21
34
45
52
61
74
89
95
105
114
125
1314
141
1516
1617
179
189
195
2021
215
225
234
249
255
265
2714
2814
2930
301
3116
3216
3317
3435
359
369
379
389
3940
409
4121
4221
4344
445
4514
465
4716
4849
499
509
515
5221
535
545
5514
5614
5714
5814
5930
6030
6130
6263
6364
6416
6516
6616
6717
6817
6935
7035
719
729
739
749
759
769
7714
789
7980
8040
819
829
8321

[1,2,1,4,5,2,1,4,9,5,5,4,5,14,1,16,17,9,9,5,21,5,
 5,4,9,5,5,14,14,30,1,16,16,17,35,9,9,9,9,40,9,21,
 21,44,5,14,5,16,49,9,9,5,21,5,5,14,14,14,14,30,30,
 30,63,64,16,16,16,17,17,35,35,9,9,9,9,9,9,14,9,80,
 40,9,9,21]