A223061 - OEIS

%I #4 Mar 13 2013 06:27:54

%S 715,3361024,18142309235,99653055754459,549172612438350029,

%T 3028264612325675509047,16700483735732492103987445,

%U 92103002955687502077421475679,507949261500434438520234512887781

%N Number of nX7 0..3 arrays with all horizontally or vertically connected equal values in a straight line, and new values 0..3 introduced in row major order

%C Column 7 of A223062

%H R. H. Hardin, <a href="/A223061/b223061.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 13 2013