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Revision History for A172580

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A172580

Number of 4*n X 8 0..1 arrays with row sums 2 and column sums n
(history; published version)

#4 by Russ Cox at Sat Mar 31 12:35:40 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Feb 06 2010

Discussion

Sat Mar 31

12:35

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

#3 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010

LINKS

R. H. Hardin, <a href="/A172580/b172580.txt">Table of n, a(n) for n=1..24</a>

KEYWORD

nonn,new

nonn

#2 by N. J. A. Sloane at Sat Oct 02 03:00:00 EDT 2010

KEYWORD

nonn,new

nonn

AUTHOR

Ron R. H. Hardin (rhhardin(AT)att.net) Feb 06 2010

#1 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

NAME

Number of 4*n X 8 0..1 arrays with row sums 2 and column sums n

DATA

2520, 187530840, 31082452632000, 7373018003758407000, 2144953893641078315315520, 712008996110160366168717566400, 259207529217195001892051045386944000

OFFSET

1,1

LINKS

R. H. Hardin, <a href="b172580.txt">Table of n, a(n) for n=1..24</a>

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Feb 06 2010

STATUS

approved