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A088389 Number of real regular n X n (0,1) matrices modulo rows permutations. +0
5
1, 3, 29, 940, 104286, 40050850, 53640013886, 251995529844792 (list; graph; listen)
OFFSET

1,2

FORMULA

a(n) = A055165(n) / n!.

CROSSREFS

Cf. A055165, A053601.

Sequence in context: A064570 A117264 A065072 this_sequence A094000 A003190 A133663

Adjacent sequences: A088386 A088387 A088388 this_sequence A088390 A088391 A088392

KEYWORD

nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Nov 08 2003

EXTENSIONS

a(7) from Herman Jamke (hermanjamke(AT)fastmail.fm), Feb 24 2008

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.


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