Numbers k such that (2*10^k - 113)/3 is prime.

Terms

a(0) =2a(1) =5a(2) =8a(3) =13a(4) =14a(5) =26a(6) =29a(7) =263a(8) =433a(9) =613a(10) =1153a(11) =1376a(12) =1412a(13) =2215a(14) =2324a(15) =5441a(16) =7610a(17) =14792a(18) =20924a(19) =27101a(20) =59174