Numbers k such that 8*k! + 1 is prime.

Terms

a(0) =2a(1) =4a(2) =9a(3) =10a(4) =11a(5) =12a(6) =15a(7) =25a(8) =31a(9) =46a(10) =53a(11) =78a(12) =318a(13) =615a(14) =955a(15) =1646a(16) =2669a(17) =2672a(18) =3515a(19) =7689