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.

A188855 Number of 6Xn binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally.

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%I A188855 #7 Jul 22 2025 11:25:45
%S A188855 33,1089,15358,181557,2092409,23131221,251306086,2684919693,
%T A188855 28421978093,298598177550,3122369984285,32535214057086,
%U A188855 338229518784097,3510243431140654,36388265576828423,376900796029916497
%N A188855 Number of 6Xn binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally.
%C A188855 Row 6 of A188851
%H A188855 R. H. Hardin, <a href="/A188855/b188855.txt">Table of n, a(n) for n = 1..200</a>
%e A188855 Some solutions for 6X3
%e A188855 ..0..1..1....1..1..1....1..0..1....1..0..0....1..0..0....0..1..0....1..1..0
%e A188855 ..1..1..1....0..1..0....1..1..1....1..1..1....0..1..1....1..1..1....1..1..1
%e A188855 ..0..0..0....1..1..1....0..1..1....1..1..0....1..1..1....1..1..1....1..0..1
%e A188855 ..0..1..1....1..1..1....1..0..1....0..1..1....1..1..1....0..1..0....0..1..1
%e A188855 ..0..1..1....1..1..0....1..1..1....0..1..0....1..0..0....1..1..1....0..1..0
%e A188855 ..0..1..0....1..0..0....1..0..1....0..0..0....1..0..1....1..1..0....0..1..0
%K A188855 nonn
%O A188855 1,1
%A A188855 _R. H. Hardin_ Apr 12 2011