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.

A219309 Unchanging value maps: number of n X 7 binary arrays indicating the locations of corresponding elements unequal to no horizontal or vertical neighbor in a random 0..2 n X 7 array.

Table of values

n a(n)
1 37
2 1157
3 43725
4 1574278
5 54797587
6 1935133104
7 68906619754
8 2448261182674
9 86782430779997

List of values

[37, 1157, 43725, 1574278, 54797587, 1935133104, 68906619754, 2448261182674, 86782430779997]

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

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