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%I #4 Oct 23 2012 08:13:25
%S 57,4001,260205,16703113,1068969245,68410191725,4378092248621,
%T 280189181606213,17931584186079329,1147588053510298689,
%U 73443503055457761265,4700247703823958214433,300807117566919214489057
%N Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..3 nX6 array
%C Column 6 of A218196
%H R. H. Hardin, <a href="/A218194/b218194.txt">Table of n, a(n) for n = 1..14</a>
%e Some solutions for n=3
%e ..0..0..0..1..0..1....0..1..1..1..0..1....0..0..1..1..1..1....0..1..1..0..1..1
%e ..1..0..1..0..0..1....0..0..0..0..1..0....1..1..1..1..0..1....1..1..0..0..0..1
%e ..1..0..1..0..0..1....1..0..1..0..1..0....0..1..0..1..0..0....0..0..1..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 23 2012
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