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%I #5 Dec 18 2015 18:18:31
%S 2,16,316,9822,384009,17068664,821284360,41697505423,2202335611907,
%T 120016210924727,6715040320826544,384617913213951506,
%U 22513060559771644440,1345458233683987073442,82071805127975022481091
%N Number of n X n 0..1 arrays with rows and antidiagonals unimodal
%C Diagonal of A223680
%e Some solutions for n=3
%e ..1..1..1....1..1..0....0..1..1....0..0..1....0..1..0....0..1..0....0..1..1
%e ..0..1..1....1..1..0....1..1..0....1..1..1....1..1..1....0..0..0....1..0..0
%e ..0..0..1....0..1..1....1..1..1....0..1..0....0..0..0....0..1..1....0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 25 2013
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