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%I #4 Feb 01 2014 07:02:46
%S 81,1503,61750,5913287,1152135751,522548961680,503953627472071,
%T 1150154956960934843
%N Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal
%C Diagonal of A236875
%e Some solutions for n=3
%e ..2..2..0..1....2..0..2..2....2..1..2..1....2..0..0..2....1..2..0..1
%e ..1..2..2..1....1..0..1..0....1..1..0..1....1..2..1..0....2..1..2..0
%e ..2..2..1..1....2..2..2..2....0..2..1..0....0..0..0..2....0..0..2..1
%e ..2..2..2..1....1..1..1..1....1..1..0..1....2..1..2..1....1..2..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 01 2014