A134221 - OEIS

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A134221

Values n for which integer solutions of Mordell curve y^2=x^3+n have 2 different values of x (or equivalently of nonnegative y).

3

12, 15, 28, 44, 63, 68, 101, 121, 128, 148, 168, 197, 198, 204, 208, 220, 232, 248, 269, 294, 337, 343, 346, 350, 369, 404, 409, 443, 481, 485, 492, 540, 556, 561, 575, 618, 640, 656, 659, 701, 702, 716, 740, 757, 768, 775, 785, 804, 829, 850, 857, 868, 885

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Union of A179147 and A179148.

LINKS

Table of n, a(n) for n=1..53.

FORMULA

Numbers n such that A134108(n) = Floor((A081119(n)+1)/2) = 2.

CROSSREFS

Cf. A134108, A134220, A134222, A134223.

Sequence in context: A124521 A345666 A369005 * A179148 A194234 A296796

Adjacent sequences: A134218 A134219 A134220 * A134222 A134223 A134224

KEYWORD

nonn

AUTHOR

Artur Jasinski, Oct 14 2007

EXTENSIONS

Edited and extended by Ray Chandler, Jul 12 2010

STATUS

approved