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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.

A251797 Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01.

Table of values

n a(n)
1 36552
2 3352272
3 294088336
4 26787273856
5 2446811684440
6 224175608341756
7 20552060379396424
8 1884978485974990408
9 172902962249484086342
10 15861042034905778115252
11 1455015754461632248883532

List of values

[36552, 3352272, 294088336, 26787273856, 2446811684440, 224175608341756, 20552060379396424, 1884978485974990408, 172902962249484086342, 15861042034905778115252, 1455015754461632248883532]

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

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