Numbers k such that 219*2^k+1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =9a(4) =13a(5) =14a(6) =17a(7) =21a(8) =22a(9) =25a(10) =27a(11) =51a(12) =58a(13) =99a(14) =138a(15) =197a(16) =325a(17) =386a(18) =413a(19) =475a(20) =529a(21) =771a(22) =826a(23) =1114a(24) =1981a(25) =2249a(26) =2333a(27) =2673a(28) =3171a(29) =3534