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Number of nX5 (-1,0,1) arrays of determinants of 2X2 subblocks of some (n+1)X6 binary array
1

%I #4 Jun 15 2013 14:10:53

%S 181,13691,539703,20577215,833949273,34404755041,1412775737517,

%T 57827217804729,2366890987279579,96919708660909729,

%U 3969044355415426525,162532913694902119493,6655600103815564563993,272542304676407531357487

%N Number of nX5 (-1,0,1) arrays of determinants of 2X2 subblocks of some (n+1)X6 binary array

%C Column 5 of A226717

%H R. H. Hardin, <a href="/A226714/b226714.txt">Table of n, a(n) for n = 1..38</a>

%e Some solutions for n=3

%e .-1.-1..1..1.-1...-1..0..0..0..1...-1..0..0..0..1...-1..0.-1..0..1

%e ..1..1.-1.-1..1....1..0.-1..0.-1....0..0..1.-1..0....1..0..1..0..0

%e .-1..0..0..1.-1...-1..1..0.-1..1....0..1..0.-1..1....0..0.-1..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Jun 15 2013