Numbers m such that 2^m + m is prime.

Terms

a(0) =1a(1) =3a(2) =5a(3) =9a(4) =15a(5) =39a(6) =75a(7) =81a(8) =89a(9) =317a(10) =701a(11) =735a(12) =1311a(13) =1881a(14) =3201a(15) =3225a(16) =11795a(17) =88071a(18) =204129a(19) =678561