A049278 Smallest nonnegative value taken on by nx^2 - 19y^2 for an infinite number of integer pairs (x, y).

1, 2, 3, 1, 1, 5, 1, 8, 5, 10, 1, 12, 2, 2, 15, 4, 17, 18, 0, 1, 2, 3, 1, 5, 1, 5, 8, 1, 2, 5, 3, 13, 14, 2, 1, 5, 2, 19, 5, 21, 13, 23, 1, 1, 5, 2, 1, 21, 1, 29, 8, 8, 2, 11, 5, 8, 38, 26, 8, 29, 1, 11, 9, 5, 41, 5, 3, 17, 2, 21, 13, 53, 6, 55, 56, 0, 1, 2, 3, 4, 5, 6, 1, 8, 1, 10, 11, 12, 13

Offset

1,2

Links

Table of n, a(n) for n=1..89.

Crossrefs

Sequence in context: A353248 A276010 A166029 * A194680 A131739 A011151

Adjacent sequences: A049275 A049276 A049277 * A049279 A049280 A049281

Keyword

nonn

Author

David W. Wilson

Status

approved