Numbers n such that 227*2^n-1 is prime.

Terms

a(0) =2a(1) =4a(2) =8a(3) =12a(4) =14a(5) =26a(6) =32a(7) =80a(8) =124a(9) =230a(10) =284a(11) =562a(12) =866a(13) =1830a(14) =2630a(15) =3122a(16) =3428a(17) =6278a(18) =9900a(19) =19888a(20) =20092a(21) =22706a(22) =29088a(23) =31412a(24) =44402a(25) =47914a(26) =53120a(27) =102330a(28) =135164a(29) =299306