Primes of the form 6*k^2 + 1.

Terms

a(0) =7a(1) =97a(2) =151a(3) =487a(4) =601a(5) =727a(6) =2647a(7) =3457a(8) =4057a(9) =7351a(10) =9127a(11) =9601a(12) =11617a(13) =12697a(14) =14407a(15) =15607a(16) =17497a(17) =20887a(18) =21601a(19) =29401a(20) =33751a(21) =37447a(22) =39367a(23) =42337a(24) =47527a(25) =53017a(26) =54151a(27) =71287a(28) =77977a(29) =80737