Numbers k such that (13^k + 5^k)/18 is prime.

A128342

Numbers k such that (13^k + 5^k)/18 is prime.

Terms

    a(0) =13a(1) =19a(2) =31a(3) =359a(4) =487a(5) =757a(6) =761a(7) =1667a(8) =2551a(9) =3167a(10) =6829

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