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 A252361 Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 3 4 6 or 7 0

%I

%S 130,276,3054,45516,1007920,35124242,1875961304,154187447172,

%T 19636182429590,3846077102733552,1158727663221999306,

%U 538512893012205801320,385891172081488215159354

%N Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 3 4 6 or 7

%C Diagonal of A252369

%e Some solutions for n=4

%e ..3..3..2..3..3..2....0..0..0..0..2..0....3..2..3..3..3..3....3..3..3..3..2..3

%e ..3..3..3..3..3..3....0..0..0..0..0..0....3..3..3..3..3..3....3..3..2..3..3..3

%e ..3..2..3..3..3..3....0..0..0..0..0..0....3..3..2..3..3..3....3..3..3..3..3..3

%e ..3..3..3..3..3..3....0..0..0..0..2..0....3..3..3..3..2..3....3..3..3..2..3..3

%e ..3..3..3..3..3..2....2..0..0..0..0..0....3..3..3..3..3..3....3..3..3..3..3..3

%e ..2..3..3..2..3..3....0..2..0..0..0..0....3..3..3..2..3..3....3..3..2..3..3..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 17 2014

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Last modified June 25 10:04 EDT 2022. Contains 354844 sequences. (Running on oeis4.)