A197278 - OEIS

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

%S 16,134,888,11850,114205,1276986,13500114,135563958,1464662469,

%T 15975572837,167590942240,1768832921236,19029812782209,

%U 203511535493020,2157669619156227,22971322152723986,245668877166018309

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

%C Every 0 is next to 0 2's, every 1 is next to 1 0'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 A197280

%H R. H. Hardin, <a href="/A197278/b197278.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..0..1..1..0....2..1..0..0..0..0....2..1..0..0..0..1....0..0..0..0..1..2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 12 2011