A049257 Smallest nonnegative value taken on by 18x^2 - ny^2 for an infinite number of integer pairs (x, y).

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

Offset

1,1

Links

Table of n, a(n) for n=1..84.

Crossrefs

Sequence in context: A196072 A261883 A294779 * A054877 A269795 A372016

Adjacent sequences: A049254 A049255 A049256 * A049258 A049259 A049260

Keyword

nonn

Author

David W. Wilson

Status

approved