A220799 Agreement numbers: number of nX4 arrays of the count of horizontal and vertical neighbors equal to the corresponding element in a random 0..2 nX4 array

8, 388, 20578, 1081347, 56854180, 2987139118, 156943511836

Offset

1,1

Comments

Column 4 of A220800

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A042115 A159515 A369770 * A220785 A203368 A012825

Adjacent sequences: A220796 A220797 A220798 * A220800 A220801 A220802

Keyword

nonn

Author

R. H. Hardin Dec 21 2012

Status

approved