Numbers k such that k * 18^k - 1 is prime.

Terms

a(0) =1a(1) =2a(2) =6a(3) =8a(4) =10a(5) =28a(6) =30a(7) =39a(8) =45a(9) =112a(10) =348a(11) =380a(12) =458a(13) =585a(14) =17559a(15) =38751a(16) =43346a(17) =46984a(18) =92711