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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.

A339326 Denominators of s in rational solutions of s^4 + s^3 + s^2 + s + 1 = y^2 with |s| <= 1.

Table of values

n a(n)
1 1
2 1
3 3
4 11
5 123
6 808
7 43993
8 1404304
9 113095273
10 16258517264
11 5907678749271
12 1749162037068984
13 2230703155726839733
14 2430407134728632414424
15 9811722627654286580946253
16 28104484948123389151863529007
17 447820184835469405718954028342863
18 5093605667758828993168776807306887631

List of values

[1, 1, 3, 11, 123, 808, 43993, 1404304, 113095273, 16258517264, 5907678749271, 1749162037068984, 2230703155726839733, 2430407134728632414424, 9811722627654286580946253, 28104484948123389151863529007, 447820184835469405718954028342863, 5093605667758828993168776807306887631]

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

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