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A304181 as a simple table

na(n)
11
22
33
44
55
62
77
88
99
102
1111
122
1313
142
153
1616
1717
182
1919
202
213
222
2323
242
2525
262
2727
282
2929
302
3131
3232
333
342
355
364
3737
382
393
402
4141
422
4343
442
453
462
4747
482
4949
502
513
522
5353
542
555
562
573
582
5959
602
6161
622
633
6464
655
662
6767
682
693
702
7171
724
7373
742
753
762
777
782
7979
802
8181
822
8383
842
855

[1,2,3,4,5,2,7,8,9,2,11,2,13,2,3,16,17,2,19,2,3,2,
 23,2,25,2,27,2,29,2,31,32,3,2,5,4,37,2,3,2,41,2,
 43,2,3,2,47,2,49,2,3,2,53,2,5,2,3,2,59,2,61,2,3,
 64,5,2,67,2,3,2,71,4,73,2,3,2,7,2,79,2,81,2,83,2,
 5]