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A207518 Number of nX7 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically 1

%I #5 Mar 31 2012 12:37:18

%S 31,961,6115,68807,600283,5849409,54373655,516879019,4866171581,

%T 46008055407,434073335621,4098491207569,38682074952657,

%U 365164477339623,3447077980972367,32541367521606267,307192500866436479

%N Number of nX7 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically

%C Column 7 of A207519

%H R. H. Hardin, <a href="/A207518/b207518.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..0..0..0..0..0..0..0....1..0..0..0..0..0..0....0..0..0..0..0..0..0

%e ..0..0..0..0..0..0..0....1..1..1..1..1..0..0....1..0..1..1..0..0..0

%e ..1..1..1..1..1..0..1....0..1..1..1..1..0..0....1..1..1..1..0..0..0

%e ..1..1..1..1..1..1..1....0..0..0..0..0..0..0....1..1..0..1..1..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 18 2012

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Last modified April 24 19:59 EDT 2024. Contains 371963 sequences. (Running on oeis4.)