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.

A221884 Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, without consecutive moves in the same direction.

Table of values

n a(n)
1 6
2 326
3 11878
4 449069
5 16834526
6 632170065
7 23731120064
8 890904857988
9 33445557232807
10 1255586659165355
11 47136215887025325
12 1769549765701234779
13 66431007429900317322
14 2493899211740460190981
15 93623949326949457663958

List of values

[6, 326, 11878, 449069, 16834526, 632170065, 23731120064, 890904857988, 33445557232807, 1255586659165355, 47136215887025325, 1769549765701234779, 66431007429900317322, 2493899211740460190981, 93623949326949457663958]

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

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