Numbers k such that 39*2^k + 1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =10a(6) =11a(7) =13a(8) =14a(9) =18a(10) =21a(11) =22a(12) =31a(13) =42a(14) =67a(15) =70a(16) =71a(17) =73a(18) =251a(19) =370a(20) =375a(21) =389a(22) =407a(23) =518a(24) =818a(25) =865a(26) =1057a(27) =1602a(28) =2211a(29) =3049