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A113771 as a simple table

na(n)
12
23
34
45
55
64
76
87
97
105
1110
128
1312
1412
157
164
176
188
198
209
2110
2221
238
246
2515
268
2714
287
2912
307
3112
3210
337
3412
355
3615
3710
3811
397
407
417
4213
4321
4411
458
4614
4715
4812
498
5013
517
5211
5317
549
557
568
579
5815
5913
6016
6110
6210
6312
6419
6520
666
6722
6820
699
7012
717
729
7315
749
7518
769
779
7819
7913
8042
8110
8217
8312
8410

[2,3,4,5,5,4,6,7,7,5,10,8,12,12,7,4,6,8,8,9,10,21,
 8,6,15,8,14,7,12,7,12,10,7,12,5,15,10,11,7,7,7,13,
 21,11,8,14,15,12,8,13,7,11,17,9,7,8,9,15,13,16,10,
 10,12,19,20,6,22,20,9,12,7,9,15,9,18,9,9,19,13,42,
 10,17,12,10]