Positive numbers y such that y^2 is of the form x^2+(x+17)^2 with integer x.

Terms

a(0) =13a(1) =17a(2) =25a(3) =53a(4) =85a(5) =137a(6) =305a(7) =493a(8) =797a(9) =1777a(10) =2873a(11) =4645a(12) =10357a(13) =16745a(14) =27073a(15) =60365a(16) =97597a(17) =157793a(18) =351833a(19) =568837a(20) =919685a(21) =2050633a(22) =3315425a(23) =5360317a(24) =11951965a(25) =19323713a(26) =31242217a(27) =69661157a(28) =112626853a(29) =182092985