Numbers k such that 355*2^k+1 is prime.

Terms

a(0) =6a(1) =12a(2) =24a(3) =34a(4) =46a(5) =138a(6) =174a(7) =816a(8) =1164a(9) =1668a(10) =1704a(11) =5334a(12) =10126a(13) =11340a(14) =13818a(15) =18564a(16) =82968a(17) =202986a(18) =241368a(19) =285492a(20) =1482390a(21) =3027372