A196484 - OEIS

%I #5 Mar 31 2012 12:36:26

%S 17,468,5370,131650,3307716,78510820,1740363958,38249638826,

%T 844387380911,18649094172670,413597303215047,9198603912775814,

%U 204434933733971755,4539111860110138352,100762741109236752675,2236881797334686400439

%N Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4

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

%C Column 7 of A196485

%H R. H. Hardin, <a href="/A196484/b196484.txt">Table of n, a(n) for n = 1..61</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 03 2011