Numbers k such that 3*5^k + 2 is prime.

Terms

a(0) =0a(1) =1a(2) =4a(3) =5a(4) =6a(5) =10a(6) =18a(7) =30a(8) =34a(9) =53a(10) =256a(11) =304a(12) =309a(13) =400a(14) =468a(15) =766a(16) =1470a(17) =2125a(18) =2238a(19) =2404a(20) =4708a(21) =5884a(22) =6264a(23) =8676a(24) =42346