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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.

A219409 Unmatched value maps: number of nX7 binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..2 nX7 array.

Table of values

n a(n)
1 37
2 4523
3 398375
4 35794147
5 3227238239
6 290895472306
7 26219581585508
8 2363313103579962
9 213017529066100563
10 19200373208853887323
11 1730628931949055584941
12 155990537505981270461154

List of values

[37, 4523, 398375, 35794147, 3227238239, 290895472306, 26219581585508, 2363313103579962, 213017529066100563, 19200373208853887323, 1730628931949055584941, 155990537505981270461154]

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

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