Numbers k such that 2^(2k-1) + 2^k + 1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =10a(5) =15a(6) =79a(7) =82a(8) =142a(9) =190a(10) =499a(11) =5071a(12) =7350a(13) =38646a(14) =42619a(15) =53347