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.

A221203 Number of 4 X n arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, with no occupancy greater than 2.

Table of values

n a(n)
1 0
2 289
3 212
4 427716
5 4984812
6 1026177156
7 30374196832
8 3043294206016
9 133567666236732
10 10038761087929924
11 525060302368983108
12 34891927404610766400
13 1974298747702764055248
14 124298442666315631470276

List of values

[0, 289, 212, 427716, 4984812, 1026177156, 30374196832, 3043294206016, 133567666236732, 10038761087929924, 525060302368983108, 34891927404610766400, 1974298747702764055248, 124298442666315631470276]

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

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