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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.

A250910 Number of (n+1)X(5+1) 0..2 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

Table of values

n a(n)
1 325277
2 147178899
3 66566704705
4 30104106257115
5 13614176466285177
6 6156816533805174849
7 2784331051704024117237
8 1259173248324767358662925
9 569442787308774307063155581
10 257522216934259282355558842095

List of values

[325277, 147178899, 66566704705, 30104106257115, 13614176466285177, 6156816533805174849, 2784331051704024117237, 1259173248324767358662925, 569442787308774307063155581, 257522216934259282355558842095]

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

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