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A273289 as a simple table

na(n)
22
33
42
55
63
77
82
93
105
1111
122
1313
145
155
162
1717
183
1919
202
215
227
2323
242
255
2611
273
282
2929
303
3131
322
337
3411
357
363
3737
3811
3911
402
4141
423
4343
442
453
4613
4747
482
497
505
5111
522
5353
543
5511
562
5711
5817
5959
603
6161
6217
633
642
6511
663
6767
682
6913
705
7171
722
7373
7423
755
762
7711
783
7979
802
813
8223

[2,3,2,5,3,7,2,3,5,11,2,13,5,5,2,17,3,19,2,5,7,23,
 2,5,11,3,2,29,3,31,2,7,11,7,3,37,11,11,2,41,3,43,
 2,3,13,47,2,7,5,11,2,53,3,11,2,11,17,59,3,61,17,3,
 2,11,3,67,2,13,5,71,2,73,23,5,2,11,3,79,2,3,23]