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A175506 as a simple table

na(n)
11
21
33
42
51
63
73
84
99
101
111
126
133
143
153
168
171
189
193
202
213
221
231
2412
255
263
2727
286
291
303
313
3216
333
341
353
3618
373
383
393
404
411
423
433
442
459
461
471
4824
4921
505
513
526
531
5427
551
5612
573
581
591
606
613
623
639
6432
653
663
673
682
693
703
711
7236
733
743
7515
766
773
783
793
808
8181
821
831
846
851
863
873
884
891
909
911
922
933
941
953
9648
973
9821
999

[1,1,3,2,1,3,3,4,9,1,1,6,3,3,3,8,1,9,3,2,3,1,1,12,
 5,3,27,6,1,3,3,16,3,1,3,18,3,3,3,4,1,3,3,2,9,1,1,
 24,21,5,3,6,1,27,1,12,3,1,1,6,3,3,9,32,3,3,3,2,3,
 3,1,36,3,3,15,6,3,3,3,8,81,1,1,6,1,3,3,4,1,9,1,2,
 3,1,3,48,3,21,9]