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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.

A196855 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,1,0,2,4 for x=0,1,2,3,4.

Table of values

n a(n)
1 40
2 6440
3 363685
4 28194191
5 2069281146
6 152929723254
7 11300853019444
8 835390769370971
9 61745852507376150
10 4563708721504197779
11 337310171120447151691
12 24931202561823495912020
13 1842711946915214490433763

List of values

[40, 6440, 363685, 28194191, 2069281146, 152929723254, 11300853019444, 835390769370971, 61745852507376150, 4563708721504197779, 337310171120447151691, 24931202561823495912020, 1842711946915214490433763]

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

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