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

Terms

a(0) =3a(1) =4a(2) =5a(3) =6a(4) =10a(5) =22a(6) =31a(7) =92a(8) =174a(9) =237a(10) =886a(11) =1075a(12) =1357a(13) =2428a(14) =3700a(15) =6319a(16) =9116