cp's OEIS Frontend

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.

A218996 Unmatched value maps: number of n X n binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..2 n X n array.

Table of values

n a(n)
1 1
2 10
3 328
4 31857
5 13259232
6 22776074699

List of values

[1, 10, 328, 31857, 13259232, 22776074699]

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

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