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.

A207446 Number of 6Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.

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%I A207446 #7 Jul 22 2025 20:27:02
%S A207446 22,484,4048,32393,287176,2405923,19685415,162644898,1341574108,
%T A207446 11023853716,90632253233,745371866818,6127014511151,50361384430983,
%U A207446 413990430367770,3403011557477728,27971925637911848,229926213789709519
%N A207446 Number of 6Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.
%C A207446 Row 6 of A207442
%H A207446 R. H. Hardin, <a href="/A207446/b207446.txt">Table of n, a(n) for n = 1..210</a>
%e A207446 Some solutions for n=4
%e A207446 ..0..1..1..1....1..0..0..0....0..1..1..1....1..0..0..0....1..1..0..1
%e A207446 ..1..1..0..0....0..1..1..0....1..1..0..1....1..1..0..0....1..1..0..0
%e A207446 ..1..1..1..1....1..0..0..0....1..1..1..1....1..0..0..0....1..1..0..1
%e A207446 ..0..0..0..0....1..1..1..0....1..0..0..0....1..1..0..0....0..0..0..0
%e A207446 ..1..1..1..1....1..0..0..0....0..1..1..1....0..0..0..0....1..1..0..1
%e A207446 ..1..0..0..0....1..1..1..0....1..1..1..0....1..1..0..0....1..1..0..0
%K A207446 nonn
%O A207446 1,1
%A A207446 _R. H. Hardin_ Feb 17 2012