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A179164 Numbers n such that Mordell's equation y^2 = x^3 - n has exactly 2 integral solutions. 0
2, 13, 15, 18, 19, 20, 23, 25, 35, 40, 44, 45, 49, 54, 56, 61, 67, 71, 72, 74, 79, 81, 83, 87, 89, 95, 106, 107, 112, 118, 121, 124, 126, 127, 128, 139, 143, 146, 148, 150, 151, 153, 155, 159, 167, 170, 172, 175, 184, 186, 188, 193, 199, 222, 223, 233, 235, 236, 239 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..59.

J. Gebel, Integer points on Mordell curves [Cached copy, after the original web site tnt.math.se.tmu.ac.jp was shut down in 2017]

CROSSREFS

Cf. A081120, A081121, A179163-A179175.

Sequence in context: A032932 A089019 A015905 * A022116 A041201 A042155

Adjacent sequences:  A179161 A179162 A179163 * A179165 A179166 A179167

KEYWORD

nonn

AUTHOR

Artur Jasinski, Jun 30 2010

EXTENSIONS

Edited by Ray Chandler, Jul 11 2010

STATUS

approved

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Last modified June 18 17:03 EDT 2021. Contains 345120 sequences. (Running on oeis4.)