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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.

A295415 Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s.

Table of values

n a(n)
1 37
2 5854
3 457178
4 37927609
5 3232240913
6 272714953724
7 23025368248778
8 1945003010538968
9 164274708080518128
10 13874595126484055272
11 1171853104636801040141
12 98975023815069258155234

List of values

[37, 5854, 457178, 37927609, 3232240913, 272714953724, 23025368248778, 1945003010538968, 164274708080518128, 13874595126484055272, 1171853104636801040141, 98975023815069258155234]

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

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