Primes of the form p^2 + p + 1 when p is prime.

Terms

a(0) =7a(1) =13a(2) =31a(3) =307a(4) =1723a(5) =3541a(6) =5113a(7) =8011a(8) =10303a(9) =17293a(10) =28057a(11) =30103a(12) =86143a(13) =147073a(14) =459007a(15) =492103a(16) =552793a(17) =579883a(18) =598303a(19) =684757a(20) =704761a(21) =735307a(22) =830833a(23) =1191373a(24) =1204507a(25) =1353733a(26) =1395943a(27) =1424443a(28) =1482307a(29) =1886503