Numbers k such that 2*5^k - 3 is prime.

Terms

a(0) =1a(1) =2a(2) =5a(3) =6a(4) =8a(5) =9a(6) =17a(7) =76a(8) =154a(9) =188a(10) =329a(11) =497a(12) =609a(13) =1401a(14) =2320a(15) =3250a(16) =3281a(17) =5489a(18) =6868a(19) =7602a(20) =28666a(21) =30969a(22) =40612a(23) =44705