cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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

Original entry on oeis.org

85580, 154396, 240004, 476425, 767125, 1235168, 1920032, 2555956, 5518439
Offset: 1

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Author

Artur Jasinski, Nov 20 2011

Keywords

Comments

For x values see A200656.
For d values see A200658.
Definition: Secondary terms occurred 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.

Crossrefs