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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.

A257939 x-values in the solutions to x^2 + x = 5*y^2 + y.

Table of values

n a(n)
1 0
2 2
3 116
4 798
5 37512
6 257114
7 12078908
8 82790070
9 3889371024
10 26658145586
11 1252365390980
12 8583840088782
13 403257766524696
14 2763969850442378
15 129847748455561292
16 889989708002357094
17 41810571744924211488
18 286573922006908542050
19 13462874254117140538004

List of values

[0, 2, 116, 798, 37512, 257114, 12078908, 82790070, 3889371024, 26658145586, 1252365390980, 8583840088782, 403257766524696, 2763969850442378, 129847748455561292, 889989708002357094, 41810571744924211488, 286573922006908542050, 13462874254117140538004]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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