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%I #4 Dec 18 2014 09:43:30
%S 771,889,4006,24336,474384,11035929,145399017,11588408619,
%T 935064459875,22633591925091,7894058596204955,2202850896886112644,
%U 91560065934888121868
%N Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 4 6 or 7
%C Diagonal of A252558
%e Some solutions for n=4
%e ..2..3..2..2..0..2....3..0..1..0..0..1....2..2..0..2..0..0....2..2..3..2..2..0
%e ..2..2..0..2..2..0....0..2..2..3..2..2....3..2..2..0..2..2....1..3..3..1..3..3
%e ..1..3..3..1..3..3....2..3..2..2..3..2....3..1..3..3..1..3....2..3..2..2..3..2
%e ..2..0..2..2..3..2....3..3..1..0..3..1....2..2..0..2..2..0....2..2..3..2..2..3
%e ..2..2..3..2..2..0....0..2..2..3..2..2....3..2..2..3..2..2....1..3..0..1..3..0
%e ..1..3..0..1..0..3....2..3..2..2..0..0....3..1..3..3..1..3....2..3..2..2..3..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 18 2014