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A218814 Hilltop maps: number of 5Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..3 5Xn array 1

%I

%S 1,895,30719,1015887,32496361,1039681033,33267198605,1064504791361,

%T 34063123433881,1089988059800483,34878608200880007,

%U 1116083095298367751,35713623091879803585,1142802788086214384757,36568628416225846226213

%N Hilltop maps: number of 5Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..3 5Xn array

%C Row 5 of A218810

%H R. H. Hardin, <a href="/A218814/b218814.txt">Table of n, a(n) for n = 1..73</a>

%e Some solutions for n=3

%e ..0..1..1....0..0..1....0..0..1....1..1..0....1..0..1....0..0..1....0..0..0

%e ..0..1..0....1..1..0....1..0..0....1..0..0....0..1..1....1..1..1....0..1..1

%e ..1..0..0....1..1..1....1..0..1....0..1..0....1..1..0....1..1..1....1..1..1

%e ..1..1..1....0..1..1....0..0..1....1..0..1....1..1..1....1..0..1....1..0..0

%e ..1..1..0....0..0..0....0..1..1....1..0..1....1..1..0....0..0..1....1..1..1

%K nonn

%O 1,2

%A _R. H. Hardin_ Nov 06 2012

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Last modified May 19 14:52 EDT 2022. Contains 353834 sequences. (Running on oeis4.)