A199146 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

3, 393, 42420, 6235011, 839006010, 117380324984, 16158623337745, 2239304268913257, 309471298054332806, 42818034223579225138, 5921413251810033475103, 819050117505774849777870

Offset

1,1

Comments

Column 5 of A199149

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

Some solutions for n=3
..0..0..0..0..1....0..0..1..1..1....0..0..1..1..1....0..0..1..0..0
..2..1..2..2..1....2..0..3..3..1....2..1..1..2..3....2..2..1..1..1
..2..1..2..1..1....2..3..3..2..2....2..0..0..2..3....0..0..2..2..2

Crossrefs

Sequence in context: A120061 A187942 A244670 * A137023 A203563 A181990

Adjacent sequences: A199143 A199144 A199145 * A199147 A199148 A199149

Keyword

nonn

Author

R. H. Hardin Nov 03 2011

Status

approved