Numbers k such that 273*2^k-1 is prime.

Terms

a(0) =2a(1) =6a(2) =10a(3) =15a(4) =22a(5) =26a(6) =31a(7) =42a(8) =47a(9) =98a(10) =107a(11) =123a(12) =126a(13) =175a(14) =178a(15) =203a(16) =223a(17) =230a(18) =239a(19) =279a(20) =371a(21) =402a(22) =519a(23) =607a(24) =755a(25) =830a(26) =871a(27) =927a(28) =980a(29) =1527