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%I #4 Jan 31 2014 06:28:09
%S 81,1435,85929,16530709,6612746409,11092792124317,27385111938746265,
%T 497183007539695570813,7087061017965887490247401
%N Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal
%C Diagonal of A236809
%e Some solutions for n=3
%e ..1..0..0..2....1..0..1..1....0..0..2..0....0..1..0..1....1..2..0..0
%e ..1..1..0..1....2..2..2..1....1..2..1..2....2..0..0..0....0..0..1..2
%e ..1..0..2..0....0..1..0..0....0..2..0..2....1..2..1..2....2..1..1..1
%e ..1..1..2..1....0..0..0..1....2..1..2..1....1..1..1..1....0..0..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 31 2014