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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.

A221136 Number of nX5 arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no occupancy greater than 2.

Table of values

n a(n)
1 8
2 1681
3 200072
4 31203396
5 4235650596
6 619901126244
7 86907967843320
8 12474883501876324
9 1766575491615801750
10 252036106134604983844
11 35804312825751223799132
12 5098360123415675049888964

List of values

[8, 1681, 200072, 31203396, 4235650596, 619901126244, 86907967843320, 12474883501876324, 1766575491615801750, 252036106134604983844, 35804312825751223799132, 5098360123415675049888964]

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

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