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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.

A196336 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,3,1,2 for x=0,1,2,3,4.

Table of values

n a(n)
1 17
2 123
3 744
4 14973
5 169152
6 1783508
7 20775275
8 288083607
9 3804352736
10 45025949276
11 551749790508
12 6938656473356
13 86871212883112
14 1084929546742079
15 13732256293307465
16 172093176937103403
17 2135921380879622460

List of values

[17, 123, 744, 14973, 169152, 1783508, 20775275, 288083607, 3804352736, 45025949276, 551749790508, 6938656473356, 86871212883112, 1084929546742079, 13732256293307465, 172093176937103403, 2135921380879622460]

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

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