Numbers k such that 2^k + 17 is prime.

Terms

a(0) =1a(1) =13a(2) =21a(3) =33a(4) =81a(5) =129a(6) =285a(7) =297a(8) =769a(9) =3381a(10) =4441a(11) =7065a(12) =77121a(13) =133437a(14) =184189a(15) =191745a(16) =1279921