Numbers k such that 105*2^k+1 is prime.

Terms

a(0) =1a(1) =2a(2) =5a(3) =7a(4) =8a(5) =12a(6) =14a(7) =23a(8) =27a(9) =33a(10) =38a(11) =49a(12) =61a(13) =62a(14) =85a(15) =93a(16) =94a(17) =107a(18) =155a(19) =182a(20) =215a(21) =273a(22) =382a(23) =392a(24) =413a(25) =434a(26) =490a(27) =1631a(28) =3063a(29) =3331