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A209022 Number of nX3 1..5 arrays with every element value z a city block distance of exactly z from another element value z 0
1, 16, 488, 26029, 1745235, 116464240 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A209023

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4

..2..3..3....2..1..1....1..1..5....2..1..2....4..2..2....5..2..2....3..1..3

..3..2..2....3..2..1....1..1..2....4..1..3....3..2..2....3..2..2....3..1..2

..1..1..3....2..2..3....2..2..1....1..1..1....1..2..3....1..1..3....3..2..2

..1..3..2....2..1..1....5..2..1....1..3..4....1..4..2....1..2..5....3..2..3

CROSSREFS

Sequence in context: A185367 A209352 A209392 * A209057 A209214 A183890

Adjacent sequences:  A209019 A209020 A209021 * A209023 A209024 A209025

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 04 2012

STATUS

approved

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Last modified December 3 18:47 EST 2016. Contains 278745 sequences.