Numbers k such that 85*2^k+1 is prime.

Terms

a(0) =4a(1) =6a(2) =10a(3) =30a(4) =34a(5) =36a(6) =38a(7) =74a(8) =88a(9) =94a(10) =148a(11) =200a(12) =624a(13) =1300a(14) =2458a(15) =2556a(16) =3638a(17) =3834a(18) =8956a(19) =15058a(20) =15818a(21) =25954a(22) =187576a(23) =382836a(24) =466658a(25) =818760a(26) =876458a(27) =892568a(28) =1072368a(29) =1910520