A197473 - OEIS

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

%S 4,50,374,2824,22672,165200,1265828,9507212,72145488,544829612,

%T 4121917612,31166838320,235726500646,1782712177744,13482608699280,

%U 101968288116918,771180418816752,5832406885650952,44110365514811080

%N Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,0,0,0 for x=0,1,2,3,4

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

%C Column 6 of A197475

%H R. H. Hardin, <a href="/A197473/b197473.txt">Table of n, a(n) for n = 1..210</a>

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 15 2011