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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.

A196703 Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,1,0,4,2 for x=0,1,2,3,4.

Table of values

n a(n)
1 6
2 136
3 1366
4 16676
5 193326
6 2264381
7 26495227
8 310276380
9 3632827590
10 42527506151
11 497870194993
12 5828719769741
13 68238349389070
14 798880050071593
15 9352648440980667
16 109493443755493253
17 1281863203314446240

List of values

[6, 136, 1366, 16676, 193326, 2264381, 26495227, 310276380, 3632827590, 42527506151, 497870194993, 5828719769741, 68238349389070, 798880050071593, 9352648440980667, 109493443755493253, 1281863203314446240]

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

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