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A049258 Smallest nonnegative value taken on by 19x^2 - ny^2 for an infinite number of integer pairs (x, y). 0
2, 1, 1, 3, 14, 3, 3, 4, 10, 1, 8, 4, 6, 5, 1, 3, 2, 1, 0, 19, 19, 6, 19, 3, 19, 2, 1, 3, 11, 19, 1, 11, 7, 19, 19, 19, 6, 19, 13, 4, 7, 3, 19, 19, 19, 19, 13, 16, 3, 1, 1, 7, 19, 19, 19, 19, 19, 2, 1, 4, 3, 2, 13, 3, 11, 10, 1, 8, 7, 5, 1, 4, 3, 2, 1, 0, 19, 19, 1, 19, 10, 3, 8, 19, 15, 5, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..87.

CROSSREFS

Sequence in context: A084389 A122022 A134357 * A228832 A247518 A078076

Adjacent sequences:  A049255 A049256 A049257 * A049259 A049260 A049261

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified June 26 03:52 EDT 2022. Contains 354871 sequences. (Running on oeis4.)