Numbers k such that (265*10^k - 7)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =9a(4) =13a(5) =14a(6) =16a(7) =46a(8) =99a(9) =112a(10) =116a(11) =127a(12) =146a(13) =208a(14) =512a(15) =848a(16) =1132a(17) =2167a(18) =2482a(19) =2666a(20) =3625a(21) =14410a(22) =16567a(23) =21529a(24) =26272a(25) =69554a(26) =69602