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A304904 as a simple table

na(n)
25
313
429
547
667
779
8109
9157
10197
11239
12283
13331
14389
15443
16509
17571
18643
19719
20797
21877
22937
231051
241129
251237
261321
271453
281549
291669
301789
311879
322029
332161
342309
352447
362579
372731
382857
393037
403187
413359
423517

[5,13,29,47,67,79,109,157,197,239,283,331,389,443,
 509,571,643,719,797,877,937,1051,1129,1237,1321,
 1453,1549,1669,1789,1879,2029,2161,2309,2447,2579,
 2731,2857,3037,3187,3359,3517]