Numbers k such that k!*2^k - 1 is prime.

Terms

a(0) =2a(1) =3a(2) =4a(3) =8a(4) =13a(5) =32a(6) =41a(7) =45a(8) =59a(9) =97a(10) =107a(11) =364a(12) =421a(13) =444a(14) =1164a(15) =1663a(16) =3202a(17) =4335a(18) =4841a(19) =13528a(20) =22159a(21) =38095a(22) =50327a(23) =72853