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A200657 Successive values y such that Mordell elliptic curve x^3 - y^2 = d has a quadratic extension over rationals. 3
85580, 154396, 240004, 476425, 767125, 1235168, 1920032, 2555956, 5518439 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

For x values see A200656.

For d values see A200658.

Definition: Secondary terms occured when existed such integer k that A200656 is divisible by k^2 and A200657 is divisible by k^3 and A200658 is divisible by k^6.

Terms free of such k are primary terms.

Secondary terms are: a(6)=a(2)*2^3, a(7)=a(3)*2^3.

A200217 is subset of this sequence.

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Cf. A200217.

Sequence in context: A010083 A235968 A195468 * A201269 A184212 A253531

Adjacent sequences:  A200654 A200655 A200656 * A200658 A200659 A200660

KEYWORD

nonn

AUTHOR

Artur Jasinski, Nov 20 2011

STATUS

approved

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Last modified July 12 13:04 EDT 2020. Contains 335661 sequences. (Running on oeis4.)