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.

A253162 Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock sum differing from its neighbors horizontally, vertically and nw-se diagonally.

Table of values

n a(n)
1 26784
2 443362
3 7252320
4 135741428
5 2461955138
6 44789509812
7 808045500430
8 14674315377606
9 265844130932752
10 4822273171428216
11 87389675007459160
12 1584487801002237370
13 28722425603939593796
14 520728445103764345118

List of values

[26784, 443362, 7252320, 135741428, 2461955138, 44789509812, 808045500430, 14674315377606, 265844130932752, 4822273171428216, 87389675007459160, 1584487801002237370, 28722425603939593796, 520728445103764345118]

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

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