Primes of the form 5k^2 + 5k + 1.

Terms

a(0) =11a(1) =31a(2) =61a(3) =101a(4) =151a(5) =211a(6) =281a(7) =661a(8) =911a(9) =1051a(10) =1201a(11) =1361a(12) =1531a(13) =1901a(14) =2311a(15) =2531a(16) =3001a(17) =3251a(18) =3511a(19) =4651a(20) =5281a(21) =6301a(22) =6661a(23) =7411a(24) =9461a(25) =9901a(26) =12251a(27) =13781a(28) =14851a(29) =15401