Numbers k such that (47*10^k + 133)/9 is prime.

Terms

a(0) =1a(1) =3a(2) =4a(3) =6a(4) =7a(5) =9a(6) =16a(7) =45a(8) =73a(9) =75a(10) =94a(11) =217a(12) =241a(13) =294a(14) =1074a(15) =2133a(16) =2379a(17) =3504a(18) =8241a(19) =16218a(20) =16387a(21) =18135a(22) =31771a(23) =47331a(24) =58456a(25) =72696a(26) =76672