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A163418 as a simple table

na(n)
13
27
313
431
543
673
7211
8241
9421
10463
111123
121723
132551
142971
154831
165701
176163
188011
198191
209901
2111131
2212433
2314281
2417293
2519183
2620023
2723563
2824181
2928393
3030103
3131153
3235911
3337831
3443891
3546441
3653593
3760271
3877563
3983233
4086143

[3,7,13,31,43,73,211,241,421,463,1123,1723,2551,
 2971,4831,5701,6163,8011,8191,9901,11131,12433,
 14281,17293,19183,20023,23563,24181,28393,30103,
 31153,35911,37831,43891,46441,53593,60271,77563,
 83233,86143]