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Number of (n+2)X(5+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 13:10:32

%S 14042,20213,59767,254401,1227461,6319654,33076723,173978395,

%T 918980293,4858189985,25672484797,135685650662,717352972096,

%U 3792709432526,20050973671682,106002037732954,560409705365204,2962812462944117

%N Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 or 4

%C Column 5 of A252293

%H R. H. Hardin, <a href="/A252290/b252290.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 16 2014