Numbers k such that 97*2^k+1 is prime.

Terms

a(0) =2a(1) =4a(2) =14a(3) =20a(4) =40a(5) =266a(6) =400a(7) =652a(8) =722a(9) =2026a(10) =2732a(11) =3880a(12) =15454a(13) =18508a(14) =21964a(15) =30344a(16) =34618a(17) =100984a(18) =341686a(19) =534310a(20) =534602a(21) =2818306a(22) =2820650a(23) =3833722