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Revision History for A183254

(Underlined text is an addition; strikethrough text is a deletion.)

Showing all changes.
A183254 Half the number of nX(n+1) binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies
(history; published version)
#5 by Russ Cox at Sat Mar 31 12:35:50 EDT 2012
AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Jan 03 2011

Discussion
Sat Mar 31 12:35
OEIS Server: https://oeis.org/edit/global/875
#4 by N. J. A. Sloane at Mon Jan 03 13:20:45 EST 2011
STATUS

proposed

approved

#3 by Ron Hardin at Mon Jan 03 11:55:25 EST 2011
LINKS

R. H. Hardin, <a href="/A183254/b183254.txt">Table of n, a(n) for n = 1..42</a>

#2 by Ron Hardin at Mon Jan 03 11:54:47 EST 2011
NAME

allocatedHalf the number of nX(n+1) binary arrays with the number of 1-1 adjacencies equal to the number forof Ron0-0 Hardinadjacencies

DATA

1, 6, 164, 29100, 23226996, 78105333988, 1085842065488760, 61809250773984051624, 14321625018219960186079740, 13455454986809863455046035960864, 51120484864308189550041467825141803152

OFFSET

1,2

COMMENTS

Superdiagonal 1 of A183253

EXAMPLE

Some solutions with a(1,1)=0 for 4X5

..0..1..0..1..0....0..1..1..1..0....0..1..0..1..1....0..0..1..1..0

..0..1..0..1..0....1..0..0..0..1....0..1..1..0..1....1..0..1..1..1

..1..1..0..1..1....0..0..1..1..0....0..1..1..0..0....0..0..1..0..0

..0..1..0..0..0....1..1..0..1..0....1..0..0..0..1....1..1..0..0..1

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Jan 03 2011

STATUS

approved

proposed

#1 by Ron Hardin at Mon Jan 03 11:35:49 EST 2011
NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved

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Last modified September 11 12:22 EDT 2024. Contains 375829 sequences. (Running on oeis4.)