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

%I #4 Dec 17 2014 19:05:14

%S 3610840,379549048,43375710311,4543445214587,484455746584740,

%T 52117935523803804,5579085124570270245,597482912872030817867,

%U 64033765038315732013105,6860332820791980455007719

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

%C Column 3 of A252500

%H R. H. Hardin, <a href="/A252499/b252499.txt">Table of n, a(n) for n = 1..118</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 17 2014