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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.

A223299 4 X 4 X 4 triangular graph coloring a rectangular array: number of n X 2 0..9 arrays where 0..9 label nodes of a graph with edges 0,1 0,2 1,2 1,3 1,4 2,4 3,4 2,5 4,5 3,6 3,7 4,7 6,7 4,8 5,8 7,8 5,9 8,9 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.

Table of values

n a(n)
1 36
2 324
3 3132
4 30564
5 298620
6 2918052
7 28515132
8 278649828
9 2722966524
10 26608833828
11 260021573820
12 2540931306084
13 24829985481084
14 242638664618916
15 2371065485035068
16 23170056359958756
17 226417834139125500

List of values

[36, 324, 3132, 30564, 298620, 2918052, 28515132, 278649828, 2722966524, 26608833828, 260021573820, 2540931306084, 24829985481084, 242638664618916, 2371065485035068, 23170056359958756, 226417834139125500]

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

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