A206793 - OEIS

%I #5 Mar 31 2012 12:37:12

%S 232,53824,8683735,1382766472,222851712982,35954795295641,

%T 5798927126392378,935195769843015103,150819269855143535380,

%U 24322790361067935901218,3922570242526007854435915

%N Number of nX4 0..3 arrays avoiding the pattern z z+1 z in any row, column, diagonal or antidiagonal

%C Column 4 of A206797

%H R. H. Hardin, <a href="/A206793/b206793.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 12 2012