Numbers k such that k * 14^k - 1 is prime.

Terms

a(0) =1a(1) =3a(2) =7a(3) =98a(4) =104a(5) =128a(6) =180a(7) =834a(8) =1633a(9) =8000a(10) =28538a(11) =46605a(12) =131941a(13) =147684a(14) =433734