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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.

A345027 a(n) is the number of maximal chains of labeled split graphs with n vertices.

Table of values

n a(n)
1 1
2 1
3 6
4 480
5 719040
6 28111985280
7 39667596799259520
8 2716101119587792215121920
9 11750142295253741381979240922398720
10 4059370170952132363824590307446791630779187200
11 138004666315436722628999805261994204164032807656029840998400
12 557103455087735168484078548670473120844063643381325957791547628642631680000

List of values

[1, 1, 6, 480, 719040, 28111985280, 39667596799259520, 2716101119587792215121920, 11750142295253741381979240922398720, 4059370170952132363824590307446791630779187200, 138004666315436722628999805261994204164032807656029840998400, 557103455087735168484078548670473120844063643381325957791547628642631680000]

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

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