Numbers n such that 8*3^n + 1 is prime.

Terms

a(0) =2a(1) =7a(2) =8a(3) =10a(4) =22a(5) =52a(6) =58a(7) =76a(8) =130a(9) =143a(10) =331a(11) =332a(12) =980a(13) =1282a(14) =1655a(15) =4031a(16) =4600a(17) =18880a(18) =89482a(19) =130592a(20) =323860a(21) =872171a(22) =1172480