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A218381 Numbers such that A211996(n) is not zero. 2
3, 4, 8, 14, 15, 18, 20, 24, 28, 35, 39, 46, 48, 55, 60, 63, 64, 66, 68, 80, 84, 94, 99, 100, 114, 120, 124, 126, 128, 136, 138, 143, 144, 150, 154, 155, 156, 158, 168, 180, 183, 195, 196, 203, 220, 224, 234, 238, 240, 243, 255, 258, 260, 275, 284, 288, 291 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
For any n, the equation x^4 + a(n)*y^4 = z^2 is solvable in integers. - Arkadiusz Wesolowski, Aug 15 2013
LINKS
D. Clark, An arithmetical function associated with the rank of elliptic curves, Canad. Math. Bull. Vol. 34 (2), 1991 pp. 181-185.
CROSSREFS
Sequence in context: A250473 A049893 A307043 * A103002 A310012 A181408
KEYWORD
nonn
AUTHOR
Michel Marcus, Oct 27 2012
STATUS
approved

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Last modified May 24 11:59 EDT 2024. Contains 372773 sequences. (Running on oeis4.)