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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.

A002030 Number of connected graphs on n labeled nodes, each node being colored with one of 5 colors, such that no edge joins nodes of the same color.

Table of values

n a(n)
0 1
1 5
2 20
3 300
4 9980
5 616260
6 65814020
7 11878194300
8 3621432947180
9 1880516646144660
10 1678121372919602420
11 2590609089652498130700
12 6947580541943715645962780
13 32448510765823652400410879460
14 264301377639329321236008592510820

List of values

[1, 5, 20, 300, 9980, 616260, 65814020, 11878194300, 3621432947180, 1880516646144660, 1678121372919602420, 2590609089652498130700, 6947580541943715645962780, 32448510765823652400410879460, 264301377639329321236008592510820]

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

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