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A031158 as a simple table

na(n)
11
27
313
431
549
667
773
8127
9133
10169
11193
12235
13259
14283
15319
16391
17427
18475
19487
20517
21535
22577
23613
24619
25643
26727
27739
28883
29895
30925
31931
32979
33991
341009
351021
361039
371093
381105
391201
401231
411249
421261
431387
441417
451471
461495
471501

[1,7,13,31,49,67,73,127,133,169,193,235,259,283,
 319,391,427,475,487,517,535,577,613,619,643,727,
 739,883,895,925,931,979,991,1009,1021,1039,1093,
 1105,1201,1231,1249,1261,1387,1417,1471,1495,1501]