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A016568 as a simple table

na(n)
13
21
32
42
51
66
71
850
91
101
111
1245
131
143
154
161
171
185
1927
201
2110
221
231
241
251
2618
271
2827
297
301
311
321
333
341
3549
362
379
381
3920
401
415
422
431
441
452
467
473
481
4936
501
512
526
531
543
5526
561
5754
5818
591
609
614
623
631
641
6516
661
671
684
691
705
714
722
732
742
753

[3,1,2,2,1,6,1,50,1,1,1,45,1,3,4,1,1,5,27,1,10,1,
 1,1,1,18,1,27,7,1,1,1,3,1,49,2,9,1,20,1,5,2,1,1,2,
 7,3,1,36,1,2,6,1,3,26,1,54,18,1,9,4,3,1,1,16,1,1,
 4,1,5,4,2,2,2,3]