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 A252320 Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 3 6 or 7 1

%I

%S 56052,25875,214325,1741936,14105723,115183853,937981280,7634090167,

%T 62282796267,507708324342,4135550419263,33696297343761,

%U 274629581667992,2238121992115863,18238035152920308,148617809035822492

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

%C Column 7 of A252321

%H R. H. Hardin, <a href="/A252320/b252320.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 16 2014

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Last modified November 26 17:30 EST 2022. Contains 358362 sequences. (Running on oeis4.)