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%I #6 Jan 24 2023 15:33:42
%S 81,1735,95954,14756791,5118051860,5288981745228,10967135442162585,
%T 75684078146093801635,911544449456708216247280
%N Number of (n+1) X (n+1) 0..2 arrays with the maximum plus the lower median minus the upper median of every 2 X 2 subblock equal.
%C Diagonal of A237099.
%e Some solutions for n=3
%e ..1..0..1..2....1..2..2..2....0..2..2..2....1..0..1..1....0..2..1..2
%e ..0..0..2..1....2..2..2..1....2..2..2..0....0..0..2..2....1..2..0..2
%e ..0..1..2..1....2..2..2..2....0..2..2..2....1..0..1..1....1..2..1..2
%e ..2..2..0..0....1..2..2..2....1..1..2..1....2..2..0..1....0..0..2..0
%Y Cf. A237099.
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 03 2014
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