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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.

A125535 Number of n X n arrays with entries in 1..6 in which adjacent entries differ by 3 or less (adjacent means in x or y directions).

Table of values

n a(n)
0 1
1 6
2 694
3 1842302
4 106627685414
5 135334709216482502
6 3763490062900640355493914
7 2293235289704399729849626764238522
8 30618002869205254395943653838381933205254046

List of values

[1, 6, 694, 1842302, 106627685414, 135334709216482502, 3763490062900640355493914, 2293235289704399729849626764238522, 30618002869205254395943653838381933205254046]

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

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