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%I
%S 81,5519,2020033,4202495253,43830625875881,2286487486628925039,
%T 588945572180874908222729,750899466581610572275099099051,
%U 4734118942676314823884430739438571861
%N Number of (n+1)X(n+1) 0..2 arrays with the maximum minus the minimum of every 2X2 subblock equal
%C Diagonal of A237945
%e Some solutions for n=2
%e ..2..0..0....1..2..1....1..2..1....1..1..1....2..0..2....1..2..0....1..0..2
%e ..1..2..2....0..2..0....0..2..0....2..2..2....0..1..0....0..2..1....2..1..1
%e ..0..2..0....2..1..0....0..1..1....1..1..2....2..0..2....2..0..0....1..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 16 2014
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