A208960 T(n,k)=Number of nXk 0..5 arrays with every element value z a city block distance of exactly z from another element value z

1, 2, 2, 5, 13, 5, 12, 115, 115, 12, 33, 1468, 5822, 1468, 33, 99, 22738, 459808, 459808, 22738, 99, 286, 372075, 44840187, 225500997, 44840187, 372075, 286, 794, 5462165

Offset

1,2

Comments

Table starts

...1......2........5........12.......33.....99.....286.794

...2.....13......115......1468....22738.372075.5462165

...5....115.....5822....459808.44840187

..12...1468...459808.225500997

..33..22738.44840187

..99.372075

.286

Links

Table of n, a(n) for n=1..30.

Example

Some solutions for n=5 k=2
..3..3....2..4....0..5....5..0....3..0....2..5....0..4....0..1....3..4
..1..1....4..0....3..2....1..1....0..4....0..2....0..4....3..1....4..0
..3..0....2..1....2..0....2..1....2..2....2..0....1..0....0..3....2..3
..3..3....0..1....2..3....0..2....3..2....2..0....1..0....0..3....0..0
..1..1....0..4....5..2....0..5....4..2....5..2....4..4....3..0....2..4

Crossrefs

Sequence in context: A209476 A209178 A209720 * A209054 A209218 A208322

Adjacent sequences: A208957 A208958 A208959 * A208961 A208962 A208963

Keyword

nonn,tabl

Author

R. H. Hardin Mar 03 2012

Status

approved