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

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

%S 6,58,121,834,2095,12019,48014,225222,831160,3944345,16773428,

%T 72763421,300929135,1319535052,5704373966,24566253078,104395539577,

%U 449962758422,1938348799951,8344538708719,35799140191716,153820463246984

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

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

%C Column 6 of A197545

%H R. H. Hardin, <a href="/A197543/b197543.txt">Table of n, a(n) for n = 1..210</a>

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 16 2011