Numbers k such that k! + (k+1)! + 1 is prime.

A087147

Numbers k such that k! + (k+1)! + 1 is prime.

Terms

    a(0) =0a(1) =3a(2) =7a(3) =9a(4) =67a(5) =291a(6) =1343a(7) =6984a(8) =12861

External references