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%I #4 Dec 19 2014 10:49:17
%S 17704,78710,585774,5013608,45094726,410194726,3747351702,34254637480,
%T 313184238226,2863795168360,26186917115912,239459836941634,
%U 2189681762603196,20023020430936170,183095883696544566
%N Number of (n+2)X(2+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 3 6 or 8
%C Column 2 of A252628
%H R. H. Hardin, <a href="/A252624/b252624.txt">Table of n, a(n) for n = 1..204</a>
%e Some solutions for n=2
%e ..2..0..2..3....3..1..0..1....2..2..3..2....0..3..2..0....3..1..3..1
%e ..0..0..2..0....3..1..3..3....0..2..2..0....0..0..2..2....1..3..3..3
%e ..2..0..0..2....1..3..1..1....2..0..0..0....0..2..0..0....1..3..3..3
%e ..0..2..0..0....1..3..1..3....0..0..0..0....0..2..0..2....3..3..3..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 19 2014
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