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A252291 Number of (n+2)X(6+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 or 4 1

%I #4 Dec 16 2014 13:11:26

%S 33171,49671,184998,1012183,6319654,41069194,268261981,1756734380,

%T 11536574218,75750985228,497258335794,3265179833217,21443328338771,

%U 140817637214552,924732972102505,6072728887313840,39880000477638248

%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 1 or 4

%C Column 6 of A252293

%H R. H. Hardin, <a href="/A252291/b252291.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 16 2014

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)