Numbers k such that 123*2^k+1 is prime.

Terms

a(0) =6a(1) =8a(2) =17a(3) =21a(4) =29a(5) =32a(6) =46a(7) =57a(8) =69a(9) =128a(10) =141a(11) =268a(12) =333a(13) =476a(14) =742a(15) =832a(16) =1173a(17) =1677a(18) =5068a(19) =9568a(20) =15453a(21) =34761a(22) =39992a(23) =41213a(24) =41852a(25) =93982a(26) =100748a(27) =102929a(28) =164069a(29) =286268