Numbers n such that n!!-8 is prime.

Terms

a(0) =5a(1) =7a(2) =9a(3) =19a(4) =41a(5) =43a(6) =83a(7) =89a(8) =91a(9) =143a(10) =299a(11) =307a(12) =341a(13) =381a(14) =585a(15) =995a(16) =1019a(17) =1027a(18) =2043a(19) =4301a(20) =6275a(21) =11157a(22) =11621a(23) =12315a(24) =17505a(25) =24771a(26) =30535a(27) =38635