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A075642 as a simple table

na(n)
11
27
313
423
547
671
7103
8149
9193
10251
11313
12389
13467
14569
15659
16761
17881
181013
191129
201289
211451
221601
231777
241979
252153
262357
272591
282789
293023
303301
313539
323793
334057
344349
354657
364969
375297
385639
395927
406299
416679
427013
437459
447823
458237
468677
479067

[1,7,13,23,47,71,103,149,193,251,313,389,467,569,
 659,761,881,1013,1129,1289,1451,1601,1777,1979,
 2153,2357,2591,2789,3023,3301,3539,3793,4057,4349,
 4657,4969,5297,5639,5927,6299,6679,7013,7459,7823,
 8237,8677,9067]