cp's OEIS Frontend

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.

A327335 Number of non-isomorphic set-systems with n vertices and at least one endpoint/leaf.

Table of values

n	a(n)
0	0
1	1
2	4
3	18
4	216

List of values

[0, 1, 4, 18, 216]

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

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