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%I #4 Oct 23 2012 08:46:12
%S 97,14719,1945103,246985085,31459153095,4010296932181,511326127735795,
%T 65195959047122215,8312603150623482535,1059871102752817956941,
%U 135135389793386385932601,17229996080059877345670629
%N Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..2 nX7 array
%C Column 7 of A218206
%H R. H. Hardin, <a href="/A218205/b218205.txt">Table of n, a(n) for n = 1..15</a>
%e Some solutions for n=3
%e ..0..1..0..0..0..0..1....0..0..1..0..0..0..1....0..0..1..0..1..0..1
%e ..0..0..0..1..0..1..0....0..1..1..1..0..1..0....0..0..1..0..0..0..1
%e ..0..1..0..0..1..1..0....0..0..1..1..0..1..1....0..1..0..1..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 23 2012
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