%I
%S 0,4,18,191,4860,310036,53350918,26097731070,37211940860240,
%T 157260419809121989
%N Number of n X n 0..1 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor
%C Diagonal of A201353
%e Some solutions for n=5
%e ..0..0..0..0..1....0..0..0..1..1....0..0..0..1..1....0..0..0..0..1
%e ..0..0..0..1..1....0..0..1..0..0....0..0..0..1..1....0..0..1..1..1
%e ..0..1..1..0..0....0..0..1..0..0....0..0..1..1..1....0..1..0..1..1
%e ..1..0..1..0..0....0..0..1..0..0....0..0..1..1..1....1..1..0..1..0
%e ..1..0..1..1..1....0..0..1..0..0....0..1..1..0..0....1..1..0..1..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Nov 30 2011
