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Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2
1

%I #4 Nov 30 2014 19:47:14

%S 369920,29664576,3233921644,447556857260,71260903869938,

%T 12268979186486228,2203266860629332142,404818450444861746682,

%U 75308826327253124055454,14104883228288092210397394

%N Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2

%C Column 7 of A251210

%H R. H. Hardin, <a href="/A251209/b251209.txt">Table of n, a(n) for n = 1..89</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 30 2014