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Majority value maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 3Xn array
1

%I #4 Dec 08 2012 04:51:59

%S 1,19,115,694,4244,25771,156627,952152,5791155,35212909,214118912,

%T 1302044409,7917515074,48145113993,292763221173,1780247911592,

%U 10825410249051,65827639273982,400287647868551,2434086938990655

%N Majority value maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 3Xn array

%C Row 3 of A220226

%H R. H. Hardin, <a href="/A220228/b220228.txt">Table of n, a(n) for n = 1..27</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Dec 08 2012