Numbers k such that k*k! - 1 is prime.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =8a(5) =11a(6) =27a(7) =77a(8) =98a(9) =183a(10) =285a(11) =290a(12) =397a(13) =410a(14) =599a(15) =717a(16) =731a(17) =888a(18) =1962a(19) =2239a(20) =2241a(21) =2532a(22) =8799a(23) =11402a(24) =18334a(25) =20276a(26) =21028