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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.

A185564 1/4 the number of nX6 0..3 arrays with no element equal both to the element above and to the element to its left.

Table of values

n a(n)
1 1024
2 3037500
3 8977824540
4 26533211918040
5 78416544382742160
6 231753101877188629380
7 684925618712729136913980
8 2024236566241727245692157080
9 5982450596328307878990974438640

List of values

[1024, 3037500, 8977824540, 26533211918040, 78416544382742160, 231753101877188629380, 684925618712729136913980, 2024236566241727245692157080, 5982450596328307878990974438640]

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

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