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A254182 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I #5 Jan 26 2015 17:43:00

%S 512,20380,1465824,199474076,50440581336,26662412680392,

%T 28902004996988096,64912533317775080772,309602073337338501992260,

%U 3117741299216294644028911064,66338032391981054340065696682260

%N Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Diagonal of A254189

%H R. H. Hardin, <a href="/A254182/b254182.txt">Table of n, a(n) for n = 1..12</a>

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 26 2015

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Last modified August 12 09:11 EDT 2024. Contains 375085 sequences. (Running on oeis4.)