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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.

A316195 Number of self-avoiding polygons with perimeter 2*n and sides = 1 that have vertex angles from the set +-Pi/5, +-3*Pi/5, not counting rotations and reflections as distinct.

Table of values

n a(n)
1 0
2 0
3 2
4 1
5 18
6 45
7 441

List of values

[0, 0, 2, 1, 18, 45, 441]

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

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