|
%I #5 Mar 31 2012 12:35:58
%S 6966,541936,22904858,1292899174,64280495958,3390680573862,
%T 174220807520698,9060575120369248,468666562795511632,
%U 24302116797857458570,1258755953102506894388,65231670365062829035438
%N Half the number of (n+1)X7 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3
%C Column 6 of A184231
%H R. H. Hardin, <a href="/A184228/b184228.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions for 3X7
%e ..0..2..0..1..0..3..0....2..0..1..0..2..0..3....0..2..0..2..0..3..0
%e ..3..0..3..0..3..0..3....0..3..0..3..1..3..0....3..1..3..1..3..0..1
%e ..1..3..1..3..0..3..2....2..0..2..0..3..0..2....0..3..1..3..0..3..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 10 2011
| 