The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A209176

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Number of nX4 0..3 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 12:37:28 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Mar 05 2012

Discussion

Sat Mar 31

12:37

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

#3 by Ron Hardin at Mon Mar 05 16:33:51 EST 2012

STATUS

editing

approved

#2 by Ron Hardin at Mon Mar 05 16:32:49 EST 2012

NAME

allocated for Ron HardinNumber of nX4 0..3 arrays with every element value z a city block distance of exactly z from another element value z

DATA

12, 1243, 236727, 43361446, 6170585599, 815113744488, 103803050876877, 13009082234406309, 1639685959850389986, 207628870678244320910

OFFSET

1,1

COMMENTS

Column 4 of A209178

EXAMPLE

Some solutions for n=4

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

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Mar 05 2012

STATUS

approved

editing

#1 by Ron Hardin at Mon Mar 05 16:29:16 EST 2012

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved