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A252211 Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7 0

%I

%S 874,1078,3303,44776,984604,34351865,1834743852,150852965441,

%T 19211276199350,3761840357784412,1133324153448762150,

%U 526775964680392302044

%N Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7

%C Diagonal of A252219

%e Some solutions for n=4

%e ..3..2..3..3..3..3....2..3..3..3..3..3....1..1..1..1..1..1....1..1..1..1..1..2

%e ..2..3..3..3..2..3....3..3..2..3..3..3....2..1..1..1..1..1....1..1..1..1..1..1

%e ..3..3..3..3..3..3....3..3..3..3..3..3....1..1..1..1..1..1....1..1..1..1..1..1

%e ..3..2..3..3..3..3....3..3..3..2..3..3....1..1..1..1..1..2....1..1..1..1..2..1

%e ..3..3..3..2..3..3....3..3..3..3..3..3....1..1..2..1..1..1....1..1..1..1..1..1

%e ..2..3..3..3..3..3....2..3..3..3..3..3....1..1..1..1..1..1....1..2..1..1..1..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 15 2014

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Last modified October 23 08:40 EDT 2021. Contains 348211 sequences. (Running on oeis4.)