The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A209719 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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Number of nX3 0..4 arrays with every element value z a city block distance of exactly z from another element value z
(history; published version)

#4 by Russ Cox at Sat Mar 31 12:37:30 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Mar 12 2012

Discussion

Sat Mar 31

12:37

OEIS Server: https://oeis.org/edit/global/875

#3 by Ron Hardin at Mon Mar 12 05:02:14 EDT 2012

STATUS

editing

approved

#2 by Ron Hardin at Mon Mar 12 05:02:11 EDT 2012

NAME

allocated for Ron HardinNumber of nX3 0..4 arrays with every element value z a city block distance of exactly z from another element value z

DATA

5, 115, 5822, 411940, 29021568, 1712295424, 100332786038

OFFSET

1,1

COMMENTS

Column 3 of A209720

EXAMPLE

Some solutions for n=3

..1..3..0....2..1..2....2..0..0....2..2..2....2..1..2....4..2..0....3..2..2

..1..1..0....1..1..0....1..1..0....1..1..2....2..1..2....0..2..2....1..1..3

..0..1..3....2..0..2....2..0..2....2..1..0....1..1..1....2..0..4....3..2..2

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Mar 12 2012

STATUS

approved

editing

#1 by Ron Hardin at Mon Mar 12 04:58:14 EDT 2012

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved