[go: up one dir, main page]

login
Number of nX5 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal
1

%I #5 Mar 31 2012 12:37:14

%S 936,876096,649804846,491471001691,369048436354154,277547203982336971,

%T 208677027839980986946,156908217690570873253816,

%U 117980788233943361713539306,88711174108864407139043735195

%N Number of nX5 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal

%C Column 5 of A206900

%H R. H. Hardin, <a href="/A206897/b206897.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 13 2012