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Number of (n+1)X4 0..2 arrays with permanents of 2X2 subblocks differing from horizontal and vertical neighbor permanents
1

%I #5 Mar 31 2012 12:37:05

%S 2766,45914,695725,10133550,150096812,2227575108,33047965838,

%T 489959337766,7264658838232,107722280037746,1597377302050445,

%U 23685950318368998,351218766589651412,5207926994059984510

%N Number of (n+1)X4 0..2 arrays with permanents of 2X2 subblocks differing from horizontal and vertical neighbor permanents

%C Column 3 of A205293

%H R. H. Hardin, <a href="/A205288/b205288.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 25 2012