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

Terms

a(0) =2a(1) =3a(2) =8a(3) =11a(4) =14a(5) =16a(6) =28a(7) =32a(8) =39a(9) =66a(10) =68a(11) =91a(12) =98a(13) =116a(14) =126a(15) =164a(16) =191a(17) =298a(18) =323a(19) =443a(20) =714a(21) =758a(22) =759a(23) =1059a(24) =1168a(25) =1511a(26) =1792a(27) =2116a(28) =3148a(29) =3836