Primes p such that (p-1) and the period length of 1/p are both squares.

Terms

a(0) =5a(1) =17a(2) =101a(3) =257a(4) =577a(5) =1297a(6) =3137a(7) =5477a(8) =7057a(9) =12101a(10) =13457a(11) =14401a(12) =15377a(13) =24337a(14) =25601a(15) =30977a(16) =33857a(17) =41617a(18) =42437a(19) =44101a(20) =50177a(21) =52901a(22) =55697a(23) =57601a(24) =62501a(25) =65537a(26) =69697a(27) =72901a(28) =80657a(29) =98597