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A049257 Smallest nonnegative value taken on by 18x^2 - ny^2 for an infinite number of integer pairs (x, y). +0
1
2, 0, 6, 2, 13, 12, 2, 0, 9, 2, 7, 6, 2, 4, 3, 2, 1, 0, 18, 18, 18, 18, 1, 18, 2, 18, 18, 2, 18, 18, 2, 0, 18, 2, 7, 18, 2, 10, 6, 2, 18, 18, 18, 18, 18, 2, 1, 18, 2, 0, 18, 2, 18, 18, 2, 16, 15, 2, 13, 12, 2, 4, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 18, 18, 18, 18, 18, 18, 2, 18, 18, 2, 13, 18 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A036044 A078991 A021833 this_sequence A054877 A095834 A106828

Adjacent sequences: A049254 A049255 A049256 this_sequence A049258 A049259 A049260

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.


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