|
%I #5 Dec 14 2014 07:11:17
%S 2458,4866,10878,86575,1704334,41913367,1113772174,116789064529,
%T 10681007815392,910992764352996,511227354741819354,
%U 159266179111795253990,40440676759528810785390,126229089092571690095740538
%N Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 4 6 or 7
%C Diagonal of A252105
%H R. H. Hardin, <a href="/A252097/b252097.txt">Table of n, a(n) for n = 1..15</a>
%e Some solutions for n=4
%e ..1..2..1..1..2..1....1..3..3..1..3..0....3..1..0..3..1..3....3..1..3..3..1..0
%e ..3..1..3..0..1..3....0..2..2..3..2..2....2..3..2..2..0..2....1..2..1..1..2..0
%e ..3..1..0..3..1..0....3..2..2..3..2..2....2..0..2..2..3..2....3..1..0..3..1..0
%e ..1..2..1..1..2..1....1..3..3..1..3..3....3..1..3..0..1..3....3..1..3..0..1..3
%e ..3..1..3..3..1..3....3..2..2..3..2..2....2..3..2..2..3..2....0..2..1..1..2..1
%e ..0..1..3..0..1..3....0..2..2..3..2..2....2..3..2..2..3..2....3..1..0..3..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 14 2014
| 