A049259 Smallest nonnegative value taken on by 20x^2 - ny^2 for an infinite number of integer pairs (x, y).

4, 2, 5, 4, 0, 14, 5, 8, 11, 10, 4, 8, 7, 6, 5, 4, 3, 2, 1, 0, 20, 20, 5, 20, 20, 6, 5, 20, 20, 20, 4, 20, 3, 14, 5, 20, 20, 20, 5, 20, 4, 12, 5, 4, 0, 20, 5, 20, 19, 20, 5, 20, 3, 14, 5, 20, 20, 20, 1, 20, 4, 2, 17, 16, 15, 14, 5, 12, 11, 10, 4, 8, 7, 6, 5, 4, 3, 2, 1, 0, 20, 20, 5, 20, 20

Offset

1,1

Links

Table of n, a(n) for n=1..85.

Crossrefs

Sequence in context: A371192 A163363 A065258 * A010647 A021239 A112963

Adjacent sequences: A049256 A049257 A049258 * A049260 A049261 A049262

Keyword

nonn

Author

David W. Wilson

Status

approved