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A209494 as a simple table

na(n)
12
23
33
47
53
65
73
83
95
103
117
123
133
1437
1513
167
173
1811
1931
203
215
223
2319
2411
2513
267
273
283
2919
303
3131
323
335
347
353
365
3713
383
3911
4037
4161
4213
433
447
453
4619
4773
485
497
5019
5111
523
5331
547
553
5631
5731
583
597
603
6119
623
633
6431
653
6619
67151
683
695
703
717
725
733
7497

[2,3,3,7,3,5,3,3,5,3,7,3,3,37,13,7,3,11,31,3,5,3,
 19,11,13,7,3,3,19,3,31,3,5,7,3,5,13,3,11,37,61,13,
 3,7,3,19,73,5,7,19,11,3,31,7,3,31,31,3,7,3,19,3,3,
 31,3,19,151,3,5,3,7,5,3,97]