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

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =6a(5) =9a(6) =11a(7) =13a(8) =15a(9) =17a(10) =23a(11) =26a(12) =31a(13) =32a(14) =35a(15) =36a(16) =49a(17) =52a(18) =89a(19) =92a(20) =106a(21) =120a(22) =141a(23) =149a(24) =173a(25) =201a(26) =280a(27) =289a(28) =353a(29) =455