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A253818 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically 1

%I #4 Jan 14 2015 07:04:14

%S 618856,2008068,5735723,19866443,75927303,250052478,681245242,

%T 1390601653,3467027641,8832217221,24155618827,62298137597,

%U 169253832792,473982068000,1360760065340,3933485046506,11262362192707,32471019464156

%N Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically

%C Column 6 of A253820

%H R. H. Hardin, <a href="/A253818/b253818.txt">Table of n, a(n) for n = 1..135</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 14 2015

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)