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.

A267972 Number of nX4 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.

Table of values

n a(n)
1 250
2 62500
3 12067722
4 2208460532
5 370962601314
6 58977586280183
7 8920181825287255
8 1295459314730053526
9 181620283990314798496
10 24698703052360112375559
11 3269943855458863743367027

List of values

[250, 62500, 12067722, 2208460532, 370962601314, 58977586280183, 8920181825287255, 1295459314730053526, 181620283990314798496, 24698703052360112375559, 3269943855458863743367027]

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

Content is available under The OEIS End-User License Agreement.