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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.

A125541 Number of n X n arrays with entries in 1..9 in which adjacent entries differ by 6 or less (adjacent means in x or y directions).

Table of values

n a(n)
0 1
1 9
2 4999
3 183051647
4 432993880473035
5 66327998573151304476953
6 657786158098403835519781868703261
7 422337116619421509499034109697459735541947069

List of values

[1, 9, 4999, 183051647, 432993880473035, 66327998573151304476953, 657786158098403835519781868703261, 422337116619421509499034109697459735541947069]

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

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