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.

A221827 Number of nX5 arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops or left turns.

Table of values

n a(n)
1 0
2 333
3 40983
4 4715043
5 570066685
6 68489860450
7 8224749361083
8 987885812260577
9 118641972922938733
10 14248324215718943851
11 1711142647446159966808

List of values

[0, 333, 40983, 4715043, 570066685, 68489860450, 8224749361083, 987885812260577, 118641972922938733, 14248324215718943851, 1711142647446159966808]

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

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