Numbers k such that k*floor(2^k/k) + 1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =10a(9) =12a(10) =13a(11) =14a(12) =16a(13) =17a(14) =19a(15) =22a(16) =31a(17) =39a(18) =61a(19) =76a(20) =89a(21) =94a(22) =102a(23) =107a(24) =122a(25) =127a(26) =130a(27) =338a(28) =521a(29) =607