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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.

A276109 The number of non-isomorphic drawings of the complete graph K_n such that any two edges intersect at most once (a.k.a. "good drawings" or "simple topological graphs").

Table of values

n a(n)
3 1
4 2
5 5
6 121
7 46999
8 502090394

List of values

[1, 2, 5, 121, 46999, 502090394]

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

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