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A057218 as a simple table

na(n)
12
23
37
45
511
67
743
817
919
1011
1123
1213
1379
1429
1531
1617
17103
1819
19457
2041
2143
2223
2347
24577
25151
2653
27163
2829
2959
3031
31156241
32193
3367
3424481
3571
3637
37223
38229
3979
4041
4183
4243
431033
4489
45271
4647
47283
4897
495881
50101
51103
5253
53107
54109
55331
56113
576841
5859
592355091201
6061

[2,3,7,5,11,7,43,17,19,11,23,13,79,29,31,17,103,
 19,457,41,43,23,47,577,151,53,163,29,59,31,156241,
 193,67,24481,71,37,223,229,79,41,83,43,1033,89,
 271,47,283,97,5881,101,103,53,107,109,331,113,
 6841,59,2355091201,61]