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A048417 as a simple table

na(n)
12
23
35
47
517
661
771
883
9271
10283
11383
12617
13727
14827
15839
167283
1716061
1827271
1927283
2028283
2128393
2238393
2339383
2449393
2560617
2661717
2772727
2882727
2983939
3093827
3193949
3294949
33161717
34171617
35172717
36272717
37282827
38283949
39382727

[2,3,5,7,17,61,71,83,271,283,383,617,727,827,839,
 7283,16061,27271,27283,28283,28393,38393,39383,
 49393,60617,61717,72727,82727,83939,93827,93949,
 94949,161717,171617,172717,272717,282827,283949,
 382727]