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

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =7a(6) =10a(7) =13a(8) =14a(9) =26a(10) =40a(11) =49a(12) =50a(13) =110a(14) =142a(15) =170a(16) =315a(17) =349a(18) =502a(19) =842a(20) =1251a(21) =1630a(22) =2054a(23) =2906a(24) =3482a(25) =5110a(26) =5227a(27) =5620a(28) =8224a(29) =8788