Numbers k such that 115*2^k+1 is prime.

Terms

a(0) =2a(1) =12a(2) =20a(3) =26a(4) =42a(5) =114a(6) =228a(7) =396a(8) =456a(9) =482a(10) =1298a(11) =3048a(12) =4968a(13) =7568a(14) =28004a(15) =32466a(16) =40548a(17) =66576a(18) =78588a(19) =101016a(20) =120650a(21) =157488a(22) =292730a(23) =778112a(24) =1338620a(25) =3763650a(26) =4347620