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.

A000683 Number of colorings of labeled graphs on n nodes using exactly 2 colors, divided by 4.

Table of values

n a(n)
1 0
2 1
3 6
4 40
5 360
6 4576
7 82656
8 2122240
9 77366400
10 4002843136
11 293717546496
12 30558458490880
13 4505780560619520
14 941417163728674816
15 278628902101315608576
16 116805328001281573519360
17 69340603828363322892779520
18 58287619305053298399714082816
19 69366390252412220606233109200896

List of values

[0, 1, 6, 40, 360, 4576, 82656, 2122240, 77366400, 4002843136, 293717546496, 30558458490880, 4505780560619520, 941417163728674816, 278628902101315608576, 116805328001281573519360, 69340603828363322892779520, 58287619305053298399714082816, 69366390252412220606233109200896]

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

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