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

Terms

a(0) =3a(1) =4a(2) =6a(3) =7a(4) =8a(5) =12a(6) =13a(7) =14a(8) =27a(9) =28a(10) =33a(11) =35a(12) =44a(13) =50a(14) =62a(15) =64a(16) =74a(17) =88a(18) =114a(19) =140a(20) =142a(21) =242a(22) =248a(23) =262a(24) =270a(25) =284a(26) =395a(27) =473a(28) =582a(29) =600