Numbers k such that 11*7^k + 2 is prime.

Terms

a(0) =0a(1) =1a(2) =2a(3) =5a(4) =8a(5) =9a(6) =42a(7) =44a(8) =46a(9) =66a(10) =69a(11) =73a(12) =88a(13) =234a(14) =257a(15) =344a(16) =1280a(17) =1930a(18) =2601a(19) =2826a(20) =3506a(21) =6313a(22) =22858a(23) =25478a(24) =32586a(25) =61701a(26) =65406