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%I #9 Dec 18 2015 18:18:39
%S 2,16,512,56472,20729216,25205141664,102496979446048,
%T 1399175578116323192,64226272780209688718776
%N Number of n X n 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(n+1) 0..1 array.
%C Diagonal of A228986.
%e Some solutions for n=4
%e ..0..0..1..0....0..0..1..1....1..1..0..1....1..1..1..0....0..0..0..1
%e ..1..0..1..0....1..1..0..0....0..0..0..1....1..1..0..1....0..0..0..1
%e ..1..1..0..0....1..0..1..0....1..1..0..0....0..1..0..0....1..0..1..0
%e ..1..1..1..0....1..0..1..1....1..1..1..1....0..1..0..1....0..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Sep 10 2013
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