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 1-3 of 3 results.

A356699 Numbers k such that Mordell's equation y^2 = x^3 + k has a record number of integral solutions.

Original entry on oeis.org

1, 8, 9, 17, 225, 1025
Offset: 1

Views

Author

Jianing Song, Aug 23 2022

Keywords

Comments

Indices of records in A081119. For the record values see A356701.

Examples

			1025 is a term since the equation y^2 = x^3 + 1025 has 32 integral solutions, and the number of solutions to y^2 = x^3 + k is less than 32 for 0 < k < 1025.
		

Crossrefs

A356700 Numbers k such that Mordell's equation y^2 = x^3 - k has a record number of integral solutions.

Original entry on oeis.org

1, 2, 4, 28, 116, 207, 431, 2351, 3807
Offset: 1

Views

Author

Jianing Song, Aug 23 2022

Keywords

Comments

Indices of records in A081120. For the record values see A356702.

Examples

			207 is a term since the equation y^2 = x^3 + 207 has 14 integral solutions, and the number of solutions to y^2 = x^3 - k is less than 14 for 0 < k < 207.
		

Crossrefs

A356701 Records values in A081119.

Original entry on oeis.org

5, 7, 10, 16, 26, 32
Offset: 1

Views

Author

Jianing Song, Aug 23 2022

Keywords

Examples

			a(6) = 32 since A356699(6) = 1025, and the equation y^2 = x^3 + 1025 has 32 integral solutions.
		

Crossrefs

Showing 1-3 of 3 results.