cp's OEIS Frontend

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.

A250537 Number of (n+1)X(n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)-x(i-1,j) in the j direction.

Table of values

n a(n)
1 150
2 10704
3 644779
4 27240292
5 824599694
6 19031828420
7 355022719767
8 5607306662836

List of values

[150, 10704, 644779, 27240292, 824599694, 19031828420, 355022719767, 5607306662836]

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

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