%I #4 Nov 12 2012 20:52:40

%S 7,21,104,531,2708,13725,69784,354500,1800573,9147029,46470551,

%T 236075721,1199269936,6092401321,30950120371,157229758186,

%U 798741995975,4057687878111,20613461578083,104718433050887,531979987846229

%N Unchanging value maps: number of nX4 binary arrays indicating the locations of corresponding elements unequal to no horizontal, antidiagonal or vertical neighbor in a random 0..1 nX4 array

%C Column 4 of A219156

%H R. H. Hardin, <a href="/A219152/b219152.txt">Table of n, a(n) for n = 1..53</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 12 2012