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A154723 as a simple table

na(n)
11
21
33
41
55
61
73
85
97
103
117
121
135
147
1511
161
173
1811
1913
203
215
2211
2313
241
255
267
2711
2813
2917
301
313
327
3313
3417
3519
363
375
3817
3919
401
415
427
4311
4413
4517
4619
4723
483
497
5019
5123
525
5311
5417
5523
561
577
5811
5913
6017
6119
6223
6329
641
653
6613
6719
6829
6931
703

[1,1,3,1,5,1,3,5,7,3,7,1,5,7,11,1,3,11,13,3,5,11,
 13,1,5,7,11,13,17,1,3,7,13,17,19,3,5,17,19,1,5,7,
 11,13,17,19,23,3,7,19,23,5,11,17,23,1,7,11,13,17,
 19,23,29,1,3,13,19,29,31,3]