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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.

A327230 Number of non-isomorphic set-systems covering n vertices with at least one endpoint/leaf.

Table of values

n	a(n)
0	0
1	1
2	3
3	14
4	198

List of values

[0, 1, 3, 14, 198]

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

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