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 A252080 Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 3 or 4 0

%I

%S 64,322,3326,47266,1034546,35987921,1915241208,157183478333,

%T 19993599538566,3912790092731608,1178650827932347077,

%U 547811008058997697527,392513656335386815116037

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

%C Diagonal of A252088

%e Some solutions for n=4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 13 2014

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Last modified January 24 16:44 EST 2021. Contains 340411 sequences. (Running on oeis4.)