A196980 - OEIS

%I #5 Mar 31 2012 12:36:27

%S 6,290,6679,156862,3795662,91153533,2188092870,52468355814,

%T 1259904818890,30260896396958,726311424309641,17435505488540779,

%U 418593341337186977,10049005361904800920,241243533429917304743,5791533057112464884540

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

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

%C Column 6 of A196982

%H R. H. Hardin, <a href="/A196980/b196980.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 08 2011