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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.

A196807 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,3,0,1 for x=0,1,2,3,4.

Table of values

n a(n)
1 1
2 41
3 420
4 8719
5 166682
6 2535368
7 46685074
8 822353649
9 14219232895
10 247793610490
11 4321118145913
12 75358654335980
13 1315206264464536
14 22934359993226090
15 399880131880385285
16 6973750320639071161

List of values

[1, 41, 420, 8719, 166682, 2535368, 46685074, 822353649, 14219232895, 247793610490, 4321118145913, 75358654335980, 1315206264464536, 22934359993226090, 399880131880385285, 6973750320639071161]

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

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