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.

A219007 Unmatched value maps: number of 6Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..2 6Xn array.

This page as a plain text file.
%I A219007 #5 Jul 23 2025 00:10:45
%S A219007 1,1632,131548,6639893,377629096,22776074699
%N A219007 Unmatched value maps: number of 6Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..2 6Xn array.
%C A219007 Row 6 of A219002
%e A219007 Some solutions for n=3
%e A219007 ..1..0..1....0..0..1....0..0..1....0..1..0....0..0..0....1..0..0....0..0..0
%e A219007 ..0..1..0....1..1..0....1..0..1....0..0..1....1..1..1....0..1..1....0..1..1
%e A219007 ..0..1..1....1..0..0....1..0..0....1..1..0....0..0..1....1..0..0....1..1..1
%e A219007 ..1..0..0....1..1..0....0..1..1....1..1..1....0..1..0....0..1..1....1..0..0
%e A219007 ..0..1..0....1..0..1....1..1..1....0..0..1....1..0..1....0..1..0....1..0..1
%e A219007 ..1..0..1....0..1..0....1..1..1....0..0..0....0..1..0....1..0..1....1..1..1
%K A219007 nonn
%O A219007 1,2
%A A219007 _R. H. Hardin_ Nov 09 2012

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

Content is available under The OEIS End-User License Agreement.