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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.

A378431 Number of cyclic edge cuts in the n-barbell graph.

Table of values

n a(n)
3 1
4 727
5 580369
6 943372583
7 4393791394153
8 73031427044945215
9 4761040298703872985897
10 1242974526675429334954640663
11 1300665117895338817158343055376913
12 5449895182361696580039591706226169477735
13 91388720915969010273161845143264574586208701497

List of values

[1, 727, 580369, 943372583, 4393791394153, 73031427044945215, 4761040298703872985897, 1242974526675429334954640663, 1300665117895338817158343055376913, 5449895182361696580039591706226169477735, 91388720915969010273161845143264574586208701497]

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

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