Numbers k such that 128 * 3^k + 1 is prime.

Terms

a(0) =2a(1) =3a(2) =4a(3) =8a(4) =40a(5) =170a(6) =195a(7) =215a(8) =380a(9) =495a(10) =522a(11) =562a(12) =624a(13) =650a(14) =668a(15) =804a(16) =888a(17) =978a(18) =2830a(19) =5319a(20) =5903a(21) =6479a(22) =9650a(23) =14510a(24) =37838a(25) =38807a(26) =55982a(27) =69827a(28) =102010a(29) =149308