A197315 - OEIS

%I #5 Mar 31 2012 12:36:29

%S 4,6,79,790,4780,24704,189212,1400102,8813744,62844698,436492213,

%T 3010736948,20777197101,144191070226,998239321771,6903357295660,

%U 47811537748912,330940337259970,2291691748249353,15860451380186238

%N Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,1,0,0 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 1's, every 3 is next to 3 0's, every 4 is next to 4 0's

%C Column 6 of A197317

%H R. H. Hardin, <a href="/A197315/b197315.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..1..1..0..3..0....0..3..0..3..0..1....0..1..0..1..1..2....1..1..2..1..1..0

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 13 2011