A209783 Half the number of (n+1)X5 0..3 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference

44948, 5719838, 706149734, 89046135210, 11197401806412, 1410846309824300, 177700386195973368, 22387171143190946674, 2820279543005322791600, 355303174688921476145954, 44761475493150370182553502

Offset

1,1

Comments

Column 4 of A209787

Links

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

Example

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

Crossrefs

Sequence in context: A183590 A230618 A185574 * A295467 A158931 A162894

Adjacent sequences: A209780 A209781 A209782 * A209784 A209785 A209786

Keyword

nonn

Author

R. H. Hardin Mar 13 2012

Status

approved