Numbers k such that k! + 2*k + 1 is prime.

A192367

Numbers k such that k! + 2*k + 1 is prime.

Terms

    a(0) =0a(1) =2a(2) =3a(3) =5a(4) =6a(5) =18a(6) =44a(7) =113a(8) =2615a(9) =16914

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