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A145254 as a simple table

na(n)
22
33
42
55
63
77
82
93
105
1111
123
1313
147
1515
162
1717
183
1919
205
217
2211
2323
243
2525
2613
2715
287
2929
3015
3131
322
333
346
357
363
3737
3814
3915
405
4141
427
4343
4411
4515
4623
4747
483
497
5014
5115
5213
5353
5415
5555
567
5715
5829
5959
6015
6161
6231
6363
642
655
663
6767
686
6921
707
7171
723
7373
7414
7515
7614
7777
7815
7979
805
8121
8214
8383

[2,3,2,5,3,7,2,3,5,11,3,13,7,15,2,17,3,19,5,7,11,
 23,3,25,13,15,7,29,15,31,2,3,6,7,3,37,14,15,5,41,
 7,43,11,15,23,47,3,7,14,15,13,53,15,55,7,15,29,59,
 15,61,31,63,2,5,3,67,6,21,7,71,3,73,14,15,14,77,
 15,79,5,21,14,83]