Numbers n such that (5+n!)/5 is prime.

Terms

a(0) =7a(1) =9a(2) =11a(3) =14a(4) =19a(5) =23a(6) =45a(7) =121a(8) =131a(9) =194a(10) =735a(11) =751a(12) =1316a(13) =1372a(14) =2084a(15) =2562a(16) =5678a(17) =5758a(18) =12533a(19) =24222