Primes of the form (2*p^2 + 1)/3 where p is a prime > 3.

Terms

a(0) =17a(1) =113a(2) =193a(3) =241a(4) =353a(5) =641a(6) =1873a(7) =3361a(8) =5281a(9) =8513a(10) =10753a(11) =16433a(12) =17713a(13) =18593a(14) =21841a(15) =25873a(16) =34961a(17) =80273a(18) =92753a(19) =107201a(20) =111521a(21) =117041a(22) =134401a(23) =158113a(24) =168673a(25) =172721a(26) =182353a(27) =195121a(28) =211313a(29) =217361