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Search: id:A122527
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A122527 Number of 7 X n binary matrices. +0
1
2, 11, 172, 6327, 474286, 67147431, 17080038508 (list; graph; listen)
OFFSET

1,1

COMMENT

Given that the entries coincide so far with A121231 and that they are smaller than those in A055084, it unclear what is being counted. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 01 2008

LINKS

E. W. Weisstein, (0,1)-Matrix, MathWorld. [P. Petsie, Aug 03 2008]

CROSSREFS

Cf. A055084, A052264, A051589, A069452, A053304

Sequence in context: A120445 A003088 A121231 this_sequence A039747 A049531 A031508

Adjacent sequences: A122524 A122525 A122526 this_sequence A122528 A122529 A122530

KEYWORD

nonn,obsc

AUTHOR

Balakrishnan (bvarada2(AT)jhu.edu), Sep 17 2006

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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