A197669 - OEIS

%I #5 Mar 31 2012 12:36:30

%S 9,217,2765,44323,709083,11277331,178113620,2824369075,44803424135,

%T 710299706355,11259206241825,178502455899971,2830080961456550,

%U 44867619862024252,711321096455186766,11277240691421407939

%N Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4

%C Every 0 is next to 0 4's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 0's, every 4 is next to 4 1's

%C Column 5 of A197672

%H R. H. Hardin, <a href="/A197669/b197669.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions containing all values 0 to 4 for n=4

%e ..0..1..2..0..0....0..0..0..1..2....0..0..2..1..0....0..2..1..1..1

%e ..0..1..1..0..3....0..3..1..4..1....3..0..1..4..1....1..1..0..0..0

%e ..1..4..1..2..0....3..0..1..1..0....0..0..1..1..2....1..4..1..3..0

%e ..2..1..0..1..1....0..0..2..1..0....1..2..1..0..0....0..1..1..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 17 2011