Numbers k such that (20^k + 3^k)/23 is prime.

A379986

Numbers k such that (20^k + 3^k)/23 is prime.

Terms

    a(0) =3a(1) =19a(2) =271a(3) =577a(4) =977a(5) =1871a(6) =8647a(7) =9479a(8) =34759a(9) =44959a(10) =63149

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