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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.

A068757 Number of potential flows in n X n array with integer velocities in -10..10, i.e., number of n X n arrays with adjacent elements differing by no more than 10, counting arrays differing by a constant only once.

Table of values

n a(n)
1 1
2 6181
3 7970825457
4 2204710243834695807

List of values

[1, 6181, 7970825457, 2204710243834695807]

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

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