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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.

A185537 1/6 the number of nX4 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.

Table of values

n a(n)
1 6
2 1155
3 127570
4 17526450
5 2241330570
6 295044602325
7 38418831900875
8 5024252800116630
9 655951718326130130
10 85695581922306489845
11 11192649881286988768850
12 1462013677990229903804335

List of values

[6, 1155, 127570, 17526450, 2241330570, 295044602325, 38418831900875, 5024252800116630, 655951718326130130, 85695581922306489845, 11192649881286988768850, 1462013677990229903804335]

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

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