Numbers k such that (17*10^k - 47)/3 is prime.

Terms

a(0) =1a(1) =3a(2) =8a(3) =9a(4) =14a(5) =17a(6) =29a(7) =43a(8) =48a(9) =72a(10) =78a(11) =132a(12) =312a(13) =894a(14) =968a(15) =5030a(16) =5108a(17) =9008a(18) =11989a(19) =12903a(20) =26767a(21) =28159a(22) =30564a(23) =39619a(24) =44250a(25) =54537a(26) =77427