Primes that can be represented in the form b^n+1 or b^n-1 where b >= 2 and n >= 2.

Terms

a(0) =3a(1) =5a(2) =7a(3) =17a(4) =31a(5) =37a(6) =101a(7) =127a(8) =197a(9) =257a(10) =401a(11) =577a(12) =677a(13) =1297a(14) =1601a(15) =2917a(16) =3137a(17) =4357a(18) =5477a(19) =7057a(20) =8101a(21) =8191a(22) =8837a(23) =12101a(24) =13457a(25) =14401a(26) =15377a(27) =15877a(28) =16901a(29) =17957