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A340121 as a simple table

na(n)
125
235
339
449
551
665
791
8147
9175
10245
11301
12325
13343
14391
15455
16507
17575
18605
19637
20663
21741
22833
23897
24903
25935
261127
271205
281225
291247
301295
311505
321595
331633
341715
351763
361775
371911
381921
392107
402275
412401
422407
432499
442599
452651
463025
473143
483185
493311

[25,35,39,49,51,65,91,147,175,245,301,325,343,391,
 455,507,575,605,637,663,741,833,897,903,935,1127,
 1205,1225,1247,1295,1505,1595,1633,1715,1763,1775,
 1911,1921,2107,2275,2401,2407,2499,2599,2651,3025,
 3143,3185,3311]