A251998 - OEIS

%I #4 Dec 12 2014 10:22:13

%S 21680096,4946174244,1265816542694,324452741031424,83204478074887540,

%T 21346172975835532882,5477004140225156474736,

%U 1405295402341047031585982,360572463634696346650972140,92516184100747798001449294374

%N Number of (n+2)X(6+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 4 5 or 7

%C Column 6 of A252000

%H R. H. Hardin, <a href="/A251998/b251998.txt">Table of n, a(n) for n = 1..53</a>

%e Some solutions for n=1

%e ..0..0..0..0..0..0..0..3....0..0..0..0..0..0..0..3....0..0..0..0..0..0..0..3

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

%e ..3..3..0..0..3..3..3..3....3..0..0..0..0..0..3..3....3..0..0..3..3..0..0..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 12 2014