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A031505 as a simple table

na(n)
111
217
323
441
547
671
783
8101
9107
10113
11131
12167
13197
14227
15233
16281
17311
18317
19353
20383
21401
22443
23461
24467
25491
26503
27617
28647
29677
30743
31761
32773
33827
34857
35863
36881
37887
38911
39941
40971
411013
421091
431097
441217
451283
461301
471307
481427
491433
501451

[11,17,23,41,47,71,83,101,107,113,131,167,197,227,
 233,281,311,317,353,383,401,443,461,467,491,503,
 617,647,677,743,761,773,827,857,863,881,887,911,
 941,971,1013,1091,1097,1217,1283,1301,1307,1427,
 1433,1451]