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Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 5
1

%I #4 Dec 17 2014 19:04:39

%S 201803,8200869,379549048,16121522385,688488765345,29873208668671,

%T 1289677303950945,55601840524341479,2400455819897175867,

%U 103620469170530818520,4472006410540617508883,193017617970493153804917

%N Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 5

%C Column 2 of A252500

%H R. H. Hardin, <a href="/A252498/b252498.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..0..2..2....0..1..0..2....0..0..3..1....2..0..1..2....2..0..1..0

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

%e ..2..0..1..0....1..0..1..0....0..0..0..3....0..1..1..0....1..2..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 17 2014

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