Long period primes: the decimal expansion of 1/p has period p-1.

Terms

a(0) =2a(1) =7a(2) =17a(3) =19a(4) =23a(5) =29a(6) =47a(7) =59a(8) =61a(9) =97a(10) =109a(11) =113a(12) =131a(13) =149a(14) =167a(15) =179a(16) =181a(17) =193a(18) =223a(19) =229a(20) =233a(21) =257a(22) =263a(23) =269a(24) =313a(25) =337a(26) =367a(27) =379a(28) =383a(29) =389