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A224070 as a simple table

na(n)
15
27
317
419
57
611
713
823
97
1013
1117
1223
135
1413
1519
1629
175
1811
1913
2043
2111
2213
2319
2429
255
267
2719
2847
295
3017
3119
3237
337
3411
3519
3641
3711
3817
3919
4031
415
4211
4331
4437
455
4613
4723
4843
4911
5013
5117
5243
5311
5413
5523
5637
5713
5817
5923
6031
617
6211
6319
6453
657
6611
6729
6843

[5,7,17,19,7,11,13,23,7,13,17,23,5,13,19,29,5,11,
 13,43,11,13,19,29,5,7,19,47,5,17,19,37,7,11,19,41,
 11,17,19,31,5,11,31,37,5,13,23,43,11,13,17,43,11,
 13,23,37,13,17,23,31,7,11,19,53,7,11,29,43]