Numbers k such that 233*2^k-1 is prime.

Terms

a(0) =4a(1) =10a(2) =12a(3) =22a(4) =24a(5) =34a(6) =48a(7) =60a(8) =100a(9) =562a(10) =574a(11) =640a(12) =838a(13) =852a(14) =2002a(15) =4198a(16) =4932a(17) =5860a(18) =10492a(19) =13834a(20) =17398a(21) =25944a(22) =133030a(23) =179992