A209058 T(n,k)=Number of nXk 1..6 arrays with every element value z a city block distance of exactly z from another element value z

0, 1, 1, 1, 2, 1, 3, 16, 16, 3, 3, 152, 488, 152, 3, 16, 1721, 26029, 26029, 1721, 16, 24, 24255, 1958627, 8460962, 1958627, 24255, 24, 98, 353922, 183162200

Offset

1,5

Comments

Table starts

..0.....1.......1.......3.......3........16.....24.98

..1.....2......16.....152....1721.....24255.353922

..1....16.....488...26029.1958627.183162200

..3...152...26029.8460962

..3..1721.1958627

.16.24255

.24

Links

Table of n, a(n) for n=1..31.

Example

Some solutions for n=6 k=2
..4..4....1..5....4..4....3..5....6..1....5..2....5..2....3..5....2..2....3..5
..5..4....1..1....1..1....3..3....3..1....3..2....1..2....2..2....2..3....4..2
..3..2....4..2....3..1....2..4....2..4....2..2....1..2....2..3....2..1....2..3
..4..4....2..1....4..2....3..2....2..2....2..3....1..2....2..2....3..1....3..3
..4..2....5..1....4..4....3..3....3..2....2..5....1..5....1..1....2..2....3..4
..3..5....2..4....3..2....4..5....4..6....2..2....1..2....1..5....2..2....3..5

Crossrefs

Sequence in context: A209365 A209394 A209023 * A209215 A000618 A379941

Adjacent sequences: A209055 A209056 A209057 * A209059 A209060 A209061

Keyword

nonn,tabl

Author

R. H. Hardin Mar 04 2012

Status

approved