A049246 Smallest nonnegative value taken on by 7x^2 - ny^2 for an infinite number of integer pairs (x, y).

3, 5, 1, 3, 2, 1, 0, 7, 7, 2, 7, 4, 2, 7, 3, 7, 7, 7, 1, 7, 7, 6, 5, 4, 3, 2, 1, 0, 7, 7, 1, 7, 7, 7, 7, 7, 3, 1, 7, 7, 7, 7, 3, 7, 7, 7, 1, 7, 7, 7, 3, 7, 7, 1, 7, 7, 6, 5, 1, 3, 2, 1, 0, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 7, 7, 3, 7, 7, 7, 1, 7, 3, 7, 1, 7, 7, 7, 7, 7, 7, 1, 5, 7, 7, 7, 7, 3, 2, 6, 1, 7, 7