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.
%I A189695 #7 Jul 22 2025 11:53:15 %S A189695 256,65536,2227333,84987637,2010430729,53801184855,1226051976034, %T A189695 30140493826752,693472588394369,16601078462607021,385676526874164679, %U A189695 9137625077782012475,213472003223589754146,5034772028641923262353 %N A189695 Number of nX8 binary arrays without the pattern 0 0 1 diagonally, vertically or antidiagonally. %C A189695 Column 8 of A189696 %H A189695 R. H. Hardin, <a href="/A189695/b189695.txt">Table of n, a(n) for n = 1..174</a> %e A189695 Some solutions for 3X8 %e A189695 ..0..0..0..1..0..1..0..1....0..0..0..0..0..1..1..1....0..0..0..1..0..0..0..1 %e A189695 ..1..1..1..0..0..1..1..0....1..1..1..1..1..0..1..1....0..0..1..0..1..1..1..0 %e A189695 ..0..0..0..1..0..1..0..0....1..0..0..0..1..0..0..0....0..0..0..1..0..0..1..1 %K A189695 nonn %O A189695 1,1 %A A189695 _R. H. Hardin_ Apr 25 2011