A209471 Number of nX3 0..2 arrays with every element value z a city block distance of exactly z from another element value z

5, 93, 2262, 46470, 872155, 15763699, 283656566, 5158628234, 94719097129, 1740553678442, 31936713004527, 585429561614198, 10726904286336499, 196572582094542474, 3602890987265504289, 66039419306647380401

Offset

1,1

Comments

Column 3 of A209476

Links

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

Example

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

Crossrefs

Sequence in context: A205344 A270408 A000365 * A012784 A136097 A015030

Adjacent sequences: A209468 A209469 A209470 * A209472 A209473 A209474

Keyword

nonn

Author

R. H. Hardin Mar 09 2012

Status

approved