Numbers k such that 441*2^k+1 is prime.

Terms

a(0) =1a(1) =3a(2) =4a(3) =13a(4) =17a(5) =21a(6) =47a(7) =76a(8) =91a(9) =137a(10) =167a(11) =181a(12) =211a(13) =347a(14) =353a(15) =407a(16) =479a(17) =553a(18) =591a(19) =747a(20) =981a(21) =1407a(22) =3009a(23) =3127a(24) =6483a(25) =10269a(26) =17427a(27) =21181a(28) =24349a(29) =36081