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.

A268248 Number of nX4 0..4 arrays with every repeated value in every row greater than, and every column greater than or equal to, the previous repeated value.

Table of values

n a(n)
1 570
2 324900
3 185193000
4 98956027822
5 50740994294843
6 25094770808231271
7 12036028524394985335
8 5621452214452374028388
9 2565187035327423790344235
10 1146743647158206462853356328
11 503335984976361363075982965598

List of values

[570, 324900, 185193000, 98956027822, 50740994294843, 25094770808231271, 12036028524394985335, 5621452214452374028388, 2565187035327423790344235, 1146743647158206462853356328, 503335984976361363075982965598]

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

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