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Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock summing to 3 4 5 6 7 8 or 9
1

%I #4 Dec 03 2014 16:50:45

%S 1988695378,66406260528122,2213399667918018212,

%T 73817882968740867259470,2461849509898181667047178526,

%U 82103804631580381524974704047000,2738199348379960068519012031321385958

%N Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock summing to 3 4 5 6 7 8 or 9

%C Column 7 of A251507

%H R. H. Hardin, <a href="/A251506/b251506.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 03 2014