Numbers n such that 137 * 2^n + 1 is a prime.

Terms

a(0) =3a(1) =27a(2) =39a(3) =83a(4) =203a(5) =395a(6) =467a(7) =875a(8) =1979a(9) =6939a(10) =13623a(11) =22835a(12) =56307a(13) =81839a(14) =197783a(15) =224879a(16) =261147a(17) =523283a(18) =533043a(19) =2457639