Numbers k such that k^(k + 1) + k - 1 is prime.

A309140

Numbers k such that k^(k + 1) + k - 1 is prime.

Terms

    a(0) =3a(1) =5a(2) =6a(3) =9a(4) =15a(5) =87a(6) =2323a(7) =13733

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