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.

A239529 Number of (n+1)X(n+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 1
2 2
3 216
4 11108
5 7199001
6 6976042240
7 39351464058085
8 559043719368109528

List of values

[1, 2, 216, 11108, 7199001, 6976042240, 39351464058085, 559043719368109528]

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

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