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.

A189263 Number of nX8 binary arrays without the pattern 0 0 1 diagonally, antidiagonally or horizontally.

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%I A189263 #7 Jul 22 2025 11:38:55
%S A189263 88,7744,293495,10113920,319000548,9918543104,305860450896,
%T A189263 9421503162646,290030885325044,8927631449810010,274794811549580572,
%U A189263 8458248128908576878,260346492261595728516,8013524717628350193612,246658279999619171732736
%N A189263 Number of nX8 binary arrays without the pattern 0 0 1 diagonally, antidiagonally or horizontally.
%C A189263 Column 8 of A189264
%H A189263 R. H. Hardin, <a href="/A189263/b189263.txt">Table of n, a(n) for n = 1..200</a>
%e A189263 Some solutions for 8X3
%e A189263 ..0..0..0....0..0..0....0..1..0....0..1..0....0..1..1....0..0..1....0..0..1
%e A189263 ..1..1..1....1..1..1....0..1..1....1..0..1....1..1..1....1..1..0....1..1..1
%e A189263 ..1..1..1....1..1..1....0..1..0....0..1..0....0..1..1....0..0..1....1..1..1
%e A189263 ..1..1..1....1..0..1....0..1..1....1..0..1....1..1..1....1..1..1....0..0..1
%e A189263 ..0..0..1....1..1..1....0..1..1....0..1..0....0..0..1....0..0..1....1..1..1
%e A189263 ..1..1..1....0..0..0....0..1..0....0..0..0....1..1..1....1..1..0....1..1..0
%e A189263 ..0..1..0....1..1..0....0..1..0....0..1..0....1..1..0....0..1..0....0..1..1
%e A189263 ..1..1..1....1..1..0....0..1..0....0..0..0....1..1..1....0..0..0....1..0..0
%K A189263 nonn
%O A189263 1,1
%A A189263 _R. H. Hardin_ Apr 19 2011