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A202632 Number of nX2 0..3 arrays with adjacent row and column sums unequal 1

%I

%S 12,184,2428,32676,443100,5967248,80018540,1071819720,14345548208,

%T 191832756088,2563434424352,34237692810948,457102551851688,

%U 6100655850072092,81398668652158260,1085815517813680904

%N Number of nX2 0..3 arrays with adjacent row and column sums unequal

%C Column 2 of A202636

%H R. H. Hardin, <a href="/A202632/b202632.txt">Table of n, a(n) for n = 1..68</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 21 2011

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Last modified January 24 10:42 EST 2020. Contains 331193 sequences. (Running on oeis4.)