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.

A221123 Number of nX5 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor.

Table of values

n a(n)
1 55
2 19005
3 6405243
4 2152770692
5 723234356389
6 242959402596630
7 81617731119238274
8 27417937131776836980
9 9210537138678339648264
10 3094105581109088805200095
11 1039406189945536764054814983

List of values

[55, 19005, 6405243, 2152770692, 723234356389, 242959402596630, 81617731119238274, 27417937131776836980, 9210537138678339648264, 3094105581109088805200095, 1039406189945536764054814983]

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

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