Numbers k such that 455*2^k+1 is prime.

Terms

a(0) =1a(1) =5a(2) =9a(3) =15a(4) =17a(5) =37a(6) =111a(7) =139a(8) =185a(9) =287a(10) =297a(11) =561a(12) =705a(13) =769a(14) =1187a(15) =1537a(16) =1795a(17) =2571a(18) =3391a(19) =9367a(20) =11355a(21) =11871a(22) =13739a(23) =15381a(24) =30201a(25) =34227a(26) =40515a(27) =201207a(28) =220397a(29) =247841