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A079870 as a simple table

na(n)
11
22
33
42
55
63
77
82
93
104
1111
123
1313
144
154
162
1717
183
1919
203
215
225
2323
243
255
266
273
284
2929
304
3131
322
336
346
356
363
3737
387
397
403
4141
424
4343
444
454
467
4747
483
497
504
518
524
5353
543
558
563
578
588
5959
603
6161
628
634
642
659
665
6767
685
699
705
7171
723
7373
749
755
765
779
785
7979
803
813
8210
8383
844
8510
8610
8710
884
8989
904
9110
925
9310

[1,2,3,2,5,3,7,2,3,4,11,3,13,4,4,2,17,3,19,3,5,5,
 23,3,5,6,3,4,29,4,31,2,6,6,6,3,37,7,7,3,41,4,43,4,
 4,7,47,3,7,4,8,4,53,3,8,3,8,8,59,3,61,8,4,2,9,5,
 67,5,9,5,71,3,73,9,5,5,9,5,79,3,3,10,83,4,10,10,
 10,4,89,4,10,5,10]