Numbers k such that k!! + 2^3 is prime.

Terms

a(0) =3a(1) =5a(2) =7a(3) =9a(4) =15a(5) =17a(6) =25a(7) =41a(8) =63a(9) =79a(10) =91a(11) =103a(12) =299a(13) =341a(14) =431a(15) =445a(16) =465a(17) =519a(18) =1251a(19) =2469a(20) =2507a(21) =2549a(22) =6817a(23) =8519a(24) =18983a(25) =38715