Numbers k such that (k!-7)/7 is prime.

Terms

a(0) =7a(1) =9a(2) =20a(3) =23a(4) =46a(5) =54a(6) =57a(7) =71a(8) =85a(9) =387a(10) =396a(11) =606a(12) =1121a(13) =2484a(14) =6786a(15) =9321a(16) =11881a(17) =18372