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A081758 as a simple table

na(n)
22
33
44
55
65
77
85
95
107
1111
127
1313
146
156
166
1717
186
1919
206
217
2213
2323
246
257
268
276
2811
2929
307
3131
327
339
3419
357
367
3737
3810
398
4011
4141
427
4343
448
4511
4610
4747
4811
499
507
519
5217
5353
5411
558
5613
5713
5831
5959
607
6161
6214
6313
647
658
668
6767
6810
6915
709
7171
727
7373
7416
7513
7623
778
788
7979
8013
817
8243
8383
849
8513
8611

[2,3,4,5,5,7,5,5,7,11,7,13,6,6,6,17,6,19,6,7,13,
 23,6,7,8,6,11,29,7,31,7,9,19,7,7,37,10,8,11,41,7,
 43,8,11,10,47,11,9,7,9,17,53,11,8,13,13,31,59,7,
 61,14,13,7,8,8,67,10,15,9,71,7,73,16,13,23,8,8,79,
 13,7,43,83,9,13,11]