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A029976 as a simple table

na(n)
12
23
35
47
573
689
797
8113
9211
10227
11251
12349
13373
14463
15479
16487
17503
184289
194481
204937
215393
225521
235657
245849
256761
267537
277993
2812547
2912611
3012739
3113003
3213259
3313331
3413523
3514107
3614563
3714627
3814891
3915083
4015667
4115731
4215859

[2,3,5,7,73,89,97,113,211,227,251,349,373,463,479,
 487,503,4289,4481,4937,5393,5521,5657,5849,6761,
 7537,7993,12547,12611,12739,13003,13259,13331,
 13523,14107,14563,14627,14891,15083,15667,15731,
 15859]