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%I #5 Dec 18 2015 18:18:33
%S 3,31,476,7927,132119,2160036,34534687,540957770,8329684774,
%T 126518474741,1901584578700,28359907789963,420651674953990,
%U 6217185029060841,91703594406693983
%N Number of n X n 0..2 arrays with antidiagonals unimodal and rows and diagonals nondecreasing
%C Diagonal of A223999
%e Some solutions for n=3
%e ..0..0..1....0..1..2....0..0..2....1..2..2....0..1..1....0..0..0....0..2..2
%e ..0..0..1....0..0..1....0..1..1....0..1..2....0..1..1....0..1..2....0..0..2
%e ..0..1..1....0..1..2....0..1..1....1..1..1....0..2..2....1..2..2....0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 30 2013
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