A219145 - OEIS

%I #3 Nov 12 2012 19:23:01

%S 1,51,331,1774,10505,59127,341648,1963817,11341895,65406069,377314947,

%T 2175983774,12550566460,72389111386,417539600863,2408347532016,

%U 13891206637891

%N Unchanging value maps: number of 4Xn binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 4Xn array

%C Row 4 of A219142

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Nov 12 2012