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 A207092 #7 Jul 22 2025 20:01:20 %S A207092 33,1089,20953,518001,12462017,289951889,6897033117,163328551845, %T A207092 3859116053775,91371814060913,2162098249763885,51154844975987973, %U A207092 1210540438174818673,28644458404800644097,677799353119887717715 %N A207092 Number of 6Xn 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically. %C A207092 Row 6 of A207088 %H A207092 R. H. Hardin, <a href="/A207092/b207092.txt">Table of n, a(n) for n = 1..210</a> %e A207092 Some solutions for n=4 %e A207092 ..1..0..1..1....1..1..1..1....1..1..1..0....0..1..1..0....0..1..0..0 %e A207092 ..0..0..1..0....1..1..1..1....1..1..1..0....1..1..0..0....0..1..0..1 %e A207092 ..1..0..1..1....1..1..1..0....1..1..0..0....1..0..1..0....0..1..0..1 %e A207092 ..0..0..1..1....1..0..1..1....0..0..1..0....1..1..1..0....0..1..0..0 %e A207092 ..1..0..1..0....1..1..0..1....0..1..1..0....1..1..1..0....0..1..0..1 %e A207092 ..1..0..0..1....0..1..0..1....0..1..1..0....0..0..1..0....0..1..0..0 %K A207092 nonn %O A207092 1,1 %A A207092 _R. H. Hardin_ Feb 15 2012