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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.

A181032 Number of nX(n+1) binary matrices with no initial bit string in any row or column divisible by 4.

Table of values

n a(n)
1 1
2 3
3 17
4 227
5 6743
6 454385
7 69050253
8 23720149995
9 18403310404291
10 32260116141540213
11 127750070550172845235
12 1142905840646183024996181
13 23099457587377397021217958619
14 1054727887880873003123899368746005

List of values

[1, 3, 17, 227, 6743, 454385, 69050253, 23720149995, 18403310404291, 32260116141540213, 127750070550172845235, 1142905840646183024996181, 23099457587377397021217958619, 1054727887880873003123899368746005]

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

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