login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

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
OFFSET
1,1
CROSSREFS
Sequence in context: A084389 A122022 A134357 * A228832 A379217 A247518
KEYWORD
nonn
STATUS
approved