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.

Showing 1-2 of 2 results.

A309163 Rank of elliptic curve y^2 = x * (x+1) * (x-n).

Original entry on oeis.org

0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 2, 0, 1, 1, 1
Offset: 1

Views

Author

Seiichi Manyama, Jul 15 2019

Keywords

Crossrefs

Programs

  • PARI
    {a(n) = ellanalyticrank(ellinit([0, -n+1, 0, -n, 0]))[1]}

A309164 Least k such that the rank of the elliptic curve y^2 = x * (x+1) * (x+k) is n.

Original entry on oeis.org

2, 7, 31, 627, 15991
Offset: 0

Views

Author

Seiichi Manyama, Jul 15 2019

Keywords

Crossrefs

Programs

  • PARI
    {a(n) = my(k=2); while(ellanalyticrank(ellinit([0, k+1, 0, k, 0]))[1]<>n, k++); k}
Showing 1-2 of 2 results.