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.

A222921 Number of nX3 0..4 arrays with no three equal values in a row horizontally or vertically, and new values 0..4 introduced in row major order.

Table of values

n a(n)
1 4
2 174
3 13571
4 1396408
5 149478882
6 16132176644
7 1743046774975
8 188375987615301
9 20358991721595731
10 2200340247114860719
11 237806554693426088256
12 25701465075957071507864
13 2777742291970854979335967

List of values

[4, 174, 13571, 1396408, 149478882, 16132176644, 1743046774975, 188375987615301, 20358991721595731, 2200340247114860719, 237806554693426088256, 25701465075957071507864, 2777742291970854979335967]

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

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