Primes of the form 21x^2+12xy+76y^2.

Terms

a(0) =109a(1) =229a(2) =349a(3) =421a(4) =541a(5) =661a(6) =709a(7) =1021a(8) =1549a(9) =1669a(10) =1789a(11) =1861a(12) =2221a(13) =2269a(14) =2749a(15) =3061a(16) =3109a(17) =3229a(18) =3469a(19) =3541a(20) =4621a(21) =4789a(22) =4909a(23) =5101a(24) =5701a(25) =5869a(26) =6229a(27) =6469a(28) =6661a(29) =6781