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A209475 Number of nX7 0..2 arrays with every element value z a city block distance of exactly z from another element value z 0
97, 175599, 283656566, 325528559843, 361061356214305, 390085680484869503, 423899279234753748599 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A209476

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=3

..0..0..1..1..0..0..0....1..2..0..1..2..2..0....2..0..0..0..0..1..0

..2..2..2..1..1..0..0....1..0..0..1..2..0..1....0..2..0..2..2..1..2

..2..2..2..1..1..0..0....0..2..1..1..2..0..1....0..2..0..2..2..2..2

CROSSREFS

Sequence in context: A220982 A193825 A338779 * A186167 A322606 A145309

Adjacent sequences:  A209472 A209473 A209474 * A209476 A209477 A209478

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 09 2012

STATUS

approved

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Last modified May 21 00:36 EDT 2022. Contains 353886 sequences. (Running on oeis4.)