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A262220 as a simple table

na(n)
21
33
43
51
63
77
87
911
101
119
123
1312
147
153
1615
173
1811
1917
203
217
229
2321
247
259
2625
2735
287
2914
303
3131
3231
3319
343
357
3611
378
3817
3951
407
4120
427
4343
4419
4511
4621
4747
4815
4955
509
513
5251
538
5435
559
567
5735
5829
5957
603
6130
6231
6323
6463
6525
6619
6721
683
6943
707
7171
7223
7336
7417
7519
7635
7739
7851
7977
8015
81107
8241
8381
847
853
8643
8759
8839
8944
9011
91103
9243
9331
9447
9517
9631
9748
9855
9959

[1,3,3,1,3,7,7,11,1,9,3,12,7,3,15,3,11,17,3,7,9,
 21,7,9,25,35,7,14,3,31,31,19,3,7,11,8,17,51,7,20,
 7,43,19,11,21,47,15,55,9,3,51,8,35,9,7,35,29,57,3,
 30,31,23,63,25,19,21,3,43,7,71,23,36,17,19,35,39,
 51,77,15,107,41,81,7,3,43,59,39,44,11,103,43,31,
 47,17,31,48,55,59]