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%I #4 Dec 17 2014 15:25:49
%S 570,682,1741,22832,504030,17562191,937980722,77093723656,
%T 9818091214865,1923038551366846,579363831610999723,
%U 269256446506102900730,192945586040744107579747,212997867807414690141275405
%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 3 5 6 or 8
%C Diagonal of A252473
%e Some solutions for n=4
%e ..1..3..3..3..1..3....3..3..3..3..1..3....1..3..3..1..3..3....3..1..3..3..1..3
%e ..3..3..3..3..3..1....3..3..1..3..3..3....3..3..3..3..3..1....3..3..3..3..3..1
%e ..3..3..3..3..3..3....3..3..3..3..3..3....3..3..3..3..3..3....1..3..3..3..3..3
%e ..3..3..3..3..3..3....3..3..3..3..3..3....3..3..1..3..3..3....3..3..3..3..3..3
%e ..3..3..3..3..3..3....1..3..3..3..3..1....1..3..3..3..3..3....3..3..3..3..3..1
%e ..3..3..1..3..3..1....3..1..3..3..1..3....3..1..3..3..3..3....1..3..3..1..3..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 17 2014
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