Numbers k such that (k!-10)/10 is prime.

Terms

a(0) =5a(1) =6a(2) =7a(3) =11a(4) =13a(5) =17a(6) =28a(7) =81a(8) =87a(9) =433a(10) =640a(11) =647a(12) =798a(13) =1026a(14) =1216a(15) =1277a(16) =3825a(17) =6684