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.

A300466 Number of n X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 1
2 8
3 160
4 8608
5 1231578
6 462538206
7 456303004550
8 1184061531948168
9 8081950028633306006
10 145086737722751262521230
11 6849888315993282295524030922

List of values

[1, 8, 160, 8608, 1231578, 462538206, 456303004550, 1184061531948168, 8081950028633306006, 145086737722751262521230, 6849888315993282295524030922]

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

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