## When x^2 + p*y and y^2 + p*x are squares, p is a small odd prime

Find positive integers   $x, y$   so that the expressions

$x^2 \; + \; p \, y$,     and
$y^2 \; + \; p \, x$

where   p = 3, 5, 7, 11, 13, 17, 19