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A209052
Number of nX2 0..6 arrays with every element value z a city block distance of exactly z from another element value z
0
2, 13, 115, 1468, 22738, 415695, 7893620, 136638297, 2269919266
OFFSET
1,1
COMMENTS
Column 2 of A209054
EXAMPLE
Some solutions for n=5
..2..4....4..4....2..4....4..4....0..3....4..0....1..1....5..1....4..3....1..0
..1..2....0..0....3..3....0..0....4..2....1..3....4..4....2..1....2..3....1..1
..1..1....1..1....2..3....2..0....2..0....1..1....1..0....2..0....3..3....1..0
..0..1....1..1....3..0....4..4....1..3....3..4....1..1....2..0....2..4....0..1
..0..4....4..4....3..4....2..0....1..4....0..3....4..4....2..5....3..3....1..1
CROSSREFS
Sequence in context: A209174 A209718 A208958 * A209217 A000180 A215715
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 04 2012
STATUS
approved