Numbers k such that 8^k - 3 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =8a(5) =50a(6) =58a(7) =71a(8) =112a(9) =1079a(10) =1318a(11) =2252a(12) =3524a(13) =4800a(14) =5560a(15) =6919a(16) =11484a(17) =12184a(18) =41099a(19) =94711a(20) =375460a(21) =449248