login
Number of (5+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards
1

%I #4 Dec 16 2013 17:56:00

%S 1990039158784,13941925875538977,100827647839987847168,

%T 729964339940515853733888,5282676168847397906091279616,

%U 38231741295276935074026677564633,276684951243509608120773693186767232

%N Number of (5+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards

%C Row 5 of A233845

%H R. H. Hardin, <a href="/A233850/b233850.txt">Table of n, a(n) for n = 1..19</a>

%e Some solutions for n=1

%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 16 2013