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A207733 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically.

%I A207733 #7 Jul 22 2025 20:44:43
%S A207733 21,441,1113,2809,27931,277729,1029231,3814209,27996255,205492225,
%T A207733 919461235,4114067881,26135084283,166026096369,818513711715,
%U A207733 4035297528025,23843629466995,140886430854481,730455853771371
%N A207733 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically.
%C A207733 Row 6 of A207729
%H A207733 R. H. Hardin, <a href="/A207733/b207733.txt">Table of n, a(n) for n = 1..210</a>
%F A207733 Empirical: a(n) = a(n-1) +32*a(n-3) +670*a(n-4) +84*a(n-5) +270*a(n-6) -4602*a(n-7) -97188*a(n-8) -30636*a(n-9) +21060*a(n-10) +124488*a(n-11) +4076280*a(n-12) +1423656*a(n-13) +2847312*a(n-15) -37015056*a(n-16)
%e A207733 Some solutions for n=4
%e A207733 ..1..0..0..1....1..0..1..1....1..1..0..1....1..0..1..1....0..1..1..0
%e A207733 ..1..0..0..1....0..1..1..1....1..0..1..1....0..1..1..1....0..1..1..1
%e A207733 ..1..1..0..1....0..0..1..1....1..0..0..1....0..0..1..1....0..1..1..0
%e A207733 ..1..0..0..1....1..0..1..1....1..0..0..1....1..0..1..1....1..1..1..0
%e A207733 ..1..0..0..1....0..0..1..1....1..1..0..1....0..1..1..1....0..1..1..0
%e A207733 ..1..0..0..1....0..0..1..1....1..0..0..1....0..0..1..1....0..1..1..0
%K A207733 nonn
%O A207733 1,1
%A A207733 _R. H. Hardin_ Feb 19 2012