Numbers k such that k![4] - 128 is prime, where k![4] = A007662(k) = quadruple factorial.

Terms

a(0) =11a(1) =13a(2) =17a(3) =19a(4) =25a(5) =27a(6) =29a(7) =41a(8) =47a(9) =61a(10) =75a(11) =113a(12) =181a(13) =251a(14) =287a(15) =339a(16) =521a(17) =533a(18) =573a(19) =687a(20) =739a(21) =1015a(22) =1243a(23) =1811a(24) =2073a(25) =2851a(26) =2939a(27) =3421a(28) =4055a(29) =4211