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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 0 1 or 4
1

%I #4 Dec 16 2014 13:12:11

%S 79607,126017,596945,4209322,33076723,268261981,2178722578,

%T 17710640816,144353942697,1176494729579,9584621728108,78098636376055,

%U 636496898263345,5187423126894299,42275672114526874,344528964136996607

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

%C Column 7 of A252293

%H R. H. Hardin, <a href="/A252292/b252292.txt">Table of n, a(n) for n = 1..150</a>

%e Some solutions for n=2

%e ..2..1..2..2..1..0..2..0..0....1..2..2..2..2..1..2..2..2

%e ..1..0..2..1..2..2..1..0..2....1..2..2..2..2..2..2..1..2

%e ..0..1..1..0..2..1..2..2..1....1..2..2..2..1..2..2..2..2

%e ..2..1..0..1..1..0..2..1..0....1..2..2..2..2..2..1..2..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 16 2014