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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.

A316192 Number of self-avoiding polygons with perimeter n and sides = 1 that have vertex angles from the set 0, +-Pi/6, +-*Pi/3, +-Pi/2, +-2*Pi/3, +-5*Pi/6, not counting rotations and reflections as distinct.

Table of values

n a(n)
1 0
2 0
3 1
4 3
5 4
6 22
7 69
8 418
9 2210
10 14024

List of values

[0, 0, 1, 3, 4, 22, 69, 418, 2210, 14024]

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

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