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.

A268422 Number of nX5 0..3 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

Table of values

n a(n)
1 39
2 30295
3 25770278
4 17282463434
5 10053286458091
6 5273786308929110
7 2560363569664309507
8 1170610262171483735817
9 510268599126763954210436

List of values

[39, 30295, 25770278, 17282463434, 10053286458091, 5273786308929110, 2560363569664309507, 1170610262171483735817, 510268599126763954210436]

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

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