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A061242 as a simple table

na(n)
117
253
371
489
5107
6179
7197
8233
9251
10269
11359
12431
13449
14467
15503
16521
17557
18593
19647
20683
21701
22719
23773
24809
25827
26863
27881
28953
29971
301061
311097
321151
331187
341223
351259
361277
371367
381439
391493
401511
411583
421601
431619
441637
451709
461871
471889
481907

[17,53,71,89,107,179,197,233,251,269,359,431,449,
 467,503,521,557,593,647,683,701,719,773,809,827,
 863,881,953,971,1061,1097,1151,1187,1223,1259,
 1277,1367,1439,1493,1511,1583,1601,1619,1637,1709,
 1871,1889,1907]