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A253756 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally and vertically 0

%I #4 Jan 11 2015 11:31:12

%S 512,23096,1622944,259418152,84039781656,58500640474944,

%T 84156841519162348,250063157421982076180,1545740524382351294569364,

%U 19818474670170537027103516398,527481839143365201432947246654224

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

%C Diagonal of A253764

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 11 2015

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)