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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.

A268017 Number of nX5 0..2 arrays with every repeated value in every row and column greater than or equal to the previous repeated value.

Table of values

n a(n)
1 222
2 49284
3 10941048
4 2012075697
5 343790697459
6 54331933243657
7 8093513353675817
8 1146370541408659891
9 155605439707891738543
10 20360223838428569306453
11 2580220150936262501252195

List of values

[222, 49284, 10941048, 2012075697, 343790697459, 54331933243657, 8093513353675817, 1146370541408659891, 155605439707891738543, 20360223838428569306453, 2580220150936262501252195]

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

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