Nonsquare k such that the minimal (in y) solution 0 < y < x of x^2 - k*y^2 = 1 has x-y square.

Terms

a(0) =2a(1) =3a(2) =17a(3) =24a(4) =30a(5) =40a(6) =44a(7) =84a(8) =87a(9) =99a(10) =130a(11) =182a(12) =260a(13) =288a(14) =442a(15) =448a(16) =635a(17) =650a(18) =672a(19) =675a(20) =888a(21) =894a(22) =1211a(23) =1299a(24) =1368a(25) =1605a(26) =1616a(27) =1722a(28) =1748a(29) =1955