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.

A219304 Unchanging value maps: number of n X n binary arrays indicating the locations of corresponding elements unequal to no horizontal or vertical neighbor in a random 0..2 n X n array.

Table of values

n a(n)
1 1
2 6
3 90
4 3334
5 326444
6 89981627
7 68906619754
8 144049729095880

List of values

[1, 6, 90, 3334, 326444, 89981627, 68906619754, 144049729095880]

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

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