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Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4
1

%I #6 Dec 13 2014 16:55:56

%S 10836,43618,299027,2292363,18508976,151165482,1229012088,9989905340,

%T 81383095801,663247905243,5404259846759,44037554191519,

%U 358893036197953,2925065465729381,23840188492575250,194301900497527943

%N Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4

%C Column 7 of A252065

%H R. H. Hardin, <a href="/A252064/b252064.txt">Table of n, a(n) for n = 1..198</a>

%e Some solutions for n=2

%e ..2..1..2..2..2..2..1..2..2....2..2..2..2..2..2..2..2..2

%e ..1..2..2..1..2..2..1..2..2....1..2..2..2..2..2..2..2..1

%e ..2..2..2..2..2..2..1..2..2....2..2..2..2..1..2..2..2..2

%e ..2..2..2..2..2..2..1..2..2....2..2..2..2..2..2..2..2..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 13 2014