A197559 - OEIS

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

%S 8,122,1479,23710,310658,4706533,64257852,901951086,12684564675,

%T 178322495650,2506556414671,35223505169401,495117362856222,

%U 6957878417748008,97787038707298921,1374307359034315960

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

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

%C Column 6 of A197561

%H R. H. Hardin, <a href="/A197559/b197559.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..2..0..0..2..0....0..0..2..0..0..2....0..2..0..0..2..0....0..2..0..0..2..0

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 16 2011