Numbers k such that the equation x^2 - k*y^4 = -1 has a solution for which |y| > 2.

Terms

a(0) =2a(1) =53a(2) =314a(3) =1042a(4) =1685a(5) =1825a(6) =3281a(7) =4586a(8) =5521a(9) =6770a(10) =8597a(11) =9050a(12) =11509a(13) =13858a(14) =17498a(15) =20369a(16) =24737a(17) =28085a(18) =28130a(19) =29041a(20) =31226a(21) =33226a(22) =37141a(23) =37585a(24) =42965a(25) =47402a(26) =49205a(27) =53954a(28) =57125a(29) =58913