A204683 - OEIS

%I #5 Feb 22 2020 20:54:24

%S 143,447343,563046972,815364171994,1155411237719424

%N Number of nX6 0..3 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..3 introduced in row major order

%C Column 6 of A204685

%e Some solutions for n=5

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 18 2012