Primes p == 1 (mod 3) such that ((p-1)/3)! == 1 (mod p).

Terms

a(0) =3571a(1) =4219a(2) =13669a(3) =25117a(4) =55897a(5) =89269a(6) =102121a(7) =170647a(8) =231019a(9) =246247a(10) =251431a(11) =347821a(12) =360187a(13) =398581a(14) =452797a(15) =603457a(16) =611557a(17) =879667a(18) =909151a(19) =1021417a(20) =1074607a(21) =1253887a(22) =1653919a(23) =1667311a(24) =2079169a(25) =2310019a(26) =2421907a(27) =2603077a(28) =2619871a(29) =2843107