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A078681 as a simple table

na(n)
11
21
31
453
55
652
71
84
951
102
111
123
1339
1450
151
16162
173
182
191
2038
2149
224
232
24161
2550
262
271
2852
294
3037
311
3248
333
3413
351
36160
379
3849
391
408
4142
4251
4318
443
4536
468
471
4847
493
502
5112
5235
5327
54159
551
568
5748
582
591
607
614
6241
6350
6416
6517
662
671
6835
697
7013
711
7246
7311
742
751
763
7711
7834
792
8026
81158
827
836
847

[1,1,1,53,5,52,1,4,51,2,1,3,39,50,1,162,3,2,1,38,
 49,4,2,161,50,2,1,52,4,37,1,48,3,13,1,160,9,49,1,
 8,42,51,18,3,36,8,1,47,3,2,12,35,27,159,1,8,48,2,
 1,7,4,41,50,16,17,2,1,35,7,13,1,46,11,2,1,3,11,34,
 2,26,158,7,6,7]