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A358440 as a simple table

na(n)
15
23
313
417
57
65
729
811
937
1041
115
127
1353
1419
1561
1613
1723
1873
1911
203
2117
2289
2331
2497
25101
267
27109
28113
2913
3011
315
3243
3319
34137
3547
3629
37149
3817
39157
4023
4111
4213
43173
4459
45181
4637
477
48193
49197
5067
5141
5219
5371
5431
5517
565
57229
58233
5979
60241

[5,3,13,17,7,5,29,11,37,41,5,7,53,19,61,13,23,73,
 11,3,17,89,31,97,101,7,109,113,13,11,5,43,19,137,
 47,29,149,17,157,23,11,13,173,59,181,37,7,193,197,
 67,41,19,71,31,17,5,229,233,79,241]