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A274134 as a simple table

na(n)
13
27
311
431
543
667
779
8127
9131
10139
11167
12191
13211
14223
15227
16307
17331
18367
19487
20523
21631
22691
23743
24751
25883
26971
271039
281087
291399
302063
312083
322143
332179
342239
352267
362287
372347
382411
392423
402503
412531
422543
432591
442687
452731
462803
472819
482927
492939
502963

[3,7,11,31,43,67,79,127,131,139,167,191,211,223,
 227,307,331,367,487,523,631,691,743,751,883,971,
 1039,1087,1399,2063,2083,2143,2179,2239,2267,2287,
 2347,2411,2423,2503,2531,2543,2591,2687,2731,2803,
 2819,2927,2939,2963]