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A252030 Number of (n+2)X(6+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 or 4 1

%I #4 Dec 12 2014 17:15:58

%S 4259,14831,85199,541544,3560831,23454804,153768348,1007751301,

%T 6615116021,43445771467,285305534351,1873609561507,12305294821533,

%U 80822493213337,530855803548973,3486726107215819,22901307615446511

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

%C Column 6 of A252032

%H R. H. Hardin, <a href="/A252030/b252030.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 12 2014

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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)