Positive numbers y such that y^2 is of the form x^2+(x+647)^2 with integer x.

Terms

a(0) =613a(1) =647a(2) =685a(3) =2993a(4) =3235a(5) =3497a(6) =17345a(7) =18763a(8) =20297a(9) =101077a(10) =109343a(11) =118285a(12) =589117a(13) =637295a(14) =689413a(15) =3433625a(16) =3714427a(17) =4018193a(18) =20012633a(19) =21649267a(20) =23419745a(21) =116642173a(22) =126181175a(23) =136500277a(24) =679840405a(25) =735437783a(26) =795581917