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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.

A250912 Number of (n+1) X (7+1) 0..2 arrays with no 2 X 2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

Table of values

n a(n)
1 21553018
2 72721157625
3 245114118899485
4 826125782084148708
5 2784331051704024117237
6 9384142308556191112974969
7 31627738616791159166366474706
8 106596185653227343496197522538691

List of values

[21553018, 72721157625, 245114118899485, 826125782084148708, 2784331051704024117237, 9384142308556191112974969, 31627738616791159166366474706, 106596185653227343496197522538691]

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

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