Numbers k such that 63*2^k+1 is prime.

Terms

a(0) =1a(1) =4a(2) =5a(3) =9a(4) =10a(5) =14a(6) =17a(7) =18a(8) =21a(9) =25a(10) =37a(11) =38a(12) =44a(13) =60a(14) =65a(15) =94a(16) =133a(17) =153a(18) =228a(19) =280a(20) =314a(21) =326a(22) =334a(23) =340a(24) =410a(25) =429a(26) =626a(27) =693a(28) =741a(29) =768