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A049268 Smallest nonnegative value taken on by nx^2 - 9y^2 for an infinite number of integer pairs (x, y). 0
0, 2, 3, 0, 5, 6, 7, 8, 0, 1, 2, 3, 1, 5, 6, 0, 8, 9, 10, 11, 3, 7, 11, 15, 0, 9, 18, 7, 5, 21, 22, 23, 24, 25, 26, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 7, 11, 12, 0, 9, 15, 4, 9, 18, 19, 20, 3, 1, 11, 15, 1, 23, 27, 0, 9, 18, 7, 32, 15, 31, 11, 36, 1, 9, 39, 19, 17, 42, 43, 44, 0, 1, 2, 3, 1, 2, 6, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..88.

CROSSREFS

Sequence in context: A190621 A325314 A322953 * A291305 A004179 A324640

Adjacent sequences:  A049265 A049266 A049267 * A049269 A049270 A049271

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified September 25 04:57 EDT 2022. Contains 356953 sequences. (Running on oeis4.)