Numbers k such that 6*17^k + 1 is prime.

Terms

a(0) =0a(1) =1a(2) =5a(3) =7a(4) =19a(5) =23a(6) =67a(7) =107a(8) =400a(9) =429a(10) =617a(11) =743a(12) =1065a(13) =7717a(14) =12329a(15) =14459a(16) =22425a(17) =114543a(18) =221983a(19) =237453