Numbers n such that 203*2^n-1 is prime.

Terms

a(0) =2a(1) =22a(2) =82a(3) =142a(4) =190a(5) =232a(6) =314a(7) =1682a(8) =2302a(9) =5598a(10) =6632a(11) =6720a(12) =11080a(13) =22094a(14) =31310a(15) =53088a(16) =105890a(17) =115350a(18) =235480a(19) =248862a(20) =313474a(21) =455190a(22) =480918