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%I #6 Dec 18 2015 18:17:55
%S 2,3,8,36,268,3739,115168,8866257,1799674094,976134459840
%N Number of n X n 0..1 arrays with rows and columns lexicographically nondecreasing read forwards, and nonincreasing read backwards
%C Diagonal of A201375
%e Some solutions for n=5
%e ..0..1..1..1..1....0..0..0..0..1....0..1..1..1..1....0..0..1..1..1
%e ..1..0..1..1..1....0..0..0..1..0....1..0..0..1..1....0..1..0..0..1
%e ..1..1..0..0..1....0..1..1..0..0....1..0..0..1..1....0..1..1..1..0
%e ..1..1..0..1..0....1..0..1..0..0....1..1..1..0..0....1..0..1..1..0
%e ..1..1..1..0..0....1..1..0..0..0....1..1..1..0..0....1..1..0..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Nov 30 2011
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