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.

A233023 Number of nX5 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically, diagonally or antidiagonally, and top left element zero.

Table of values

n a(n)
1 81
2 2337
3 92067
4 3685017
5 149128385
6 6050598339
7 245698677999
8 9979662714381
9 405380056659145
10 16467175046293207
11 668927350000203943
12 27173135930635192613
13 1103826618460521163805
14 44839633474092471048067

List of values

[81, 2337, 92067, 3685017, 149128385, 6050598339, 245698677999, 9979662714381, 405380056659145, 16467175046293207, 668927350000203943, 27173135930635192613, 1103826618460521163805, 44839633474092471048067]

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

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