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A209472 Number of nX4 0..2 arrays with every element value z a city block distance of exactly z from another element value z 1
10, 635, 46470, 2497939, 128482557, 6446131005, 325528559843, 16644234605381, 852914715264837, 43670664954372485, 2233712112728209837, 114208859183577359217, 5839967102661447809375, 298652899566008996574607 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A209476

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A159622 A115692 A179889 * A132543 A261328 A280897

Adjacent sequences:  A209469 A209470 A209471 * A209473 A209474 A209475

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 09 2012

STATUS

approved

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Last modified May 21 03:13 EDT 2022. Contains 353886 sequences. (Running on oeis4.)