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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.

A208862 Number of nX6 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward or left-upward diagonal neighbors.

Table of values

n a(n)
1 187
2 315203
3 607924387
4 1179377179523
5 2289701830963879
6 4445765748006060562
7 8632160191264007914496
8 16760735467624113550972052
9 32543685580973709708760951442
10 63188843847651604770766546682829

List of values

[187, 315203, 607924387, 1179377179523, 2289701830963879, 4445765748006060562, 8632160191264007914496, 16760735467624113550972052, 32543685580973709708760951442, 63188843847651604770766546682829]

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

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