A210152 1/4 the number of (n+1)X5 0..3 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences

169343, 115368738, 78387305947, 53276322556234, 36208249913281496, 24608360596681275093, 16724671741551847807857, 11366651677032505181918785, 7725160246447746958229463507, 5250279729930610551058645077609

Offset

1,1

Comments

Column 4 of A210156

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..1..0..2..0..1....1..3..3..1..2....1..0..3..3..3....3..1..0..0..1
..2..2..3..0..0....0..2..2..1..2....2..2..3..2..2....1..1..1..2..2
..1..3..3..2..0....0..0..1..1..2....2..2..3..2..2....3..0..3..3..0
..2..2..1..1..0....2..0..1..3..2....3..1..1..2..1....0..0..3..3..2
..1..1..3..2..2....0..0..0..0..2....1..2..1..3..3....1..0..1..0..2

Crossrefs

Sequence in context: A185474 A034211 A308635 * A089203 A236054 A233801

Adjacent sequences: A210149 A210150 A210151 * A210153 A210154 A210155

Keyword

nonn

Author

R. H. Hardin Mar 18 2012

Status

approved