A049267 Smallest nonnegative value taken on by nx^2 - 8y^2 for an infinite number of integer pairs (x, y).

1, 0, 3, 4, 5, 6, 7, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 4, 8, 12, 14, 7, 16, 8, 2, 4, 20, 8, 22, 23, 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 10, 4, 4, 13, 14, 15, 16, 17, 0, 4, 8, 5, 16, 20, 24, 1, 2, 3, 28, 8, 6, 7, 32, 8, 34, 4, 36, 37, 38, 39, 0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 12, 8, 6, 15, 16, 1, 10, 19

Offset

1,3

Links

Table of n, a(n) for n=1..91.

Crossrefs

Sequence in context: A320727 A036288 A159077 * A111608 A126800 A245689

Adjacent sequences: A049264 A049265 A049266 * A049268 A049269 A049270

Keyword

nonn

Author

David W. Wilson

Status

approved