A199146 - OEIS

%I #5 Mar 31 2012 12:36:35

%S 3,393,42420,6235011,839006010,117380324984,16158623337745,

%T 2239304268913257,309471298054332806,42818034223579225138,

%U 5921413251810033475103,819050117505774849777870

%N Number of nX5 0..3 arrays with values 0..3 introduced in row major order and each element equal to one or two horizontal and vertical neighbors

%C Column 5 of A199149

%H R. H. Hardin, <a href="/A199146/b199146.txt">Table of n, a(n) for n = 1..28</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 03 2011