A200657 Successive values y such that Mordell elliptic curve x^3 - y^2 = d has a quadratic extension over rationals.

85580, 154396, 240004, 476425, 767125, 1235168, 1920032, 2555956, 5518439

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