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Search: id:A139629
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A139629 Row sums of A139624, number of connected directed multigraphs with loops and no vertex of degree 0, with n arcs, which are transitive (the existence of a path between two points implies the existence of an arc between those two points). +0
5
1, 2, 6, 17 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Cf. A139628, A139630.

Adjacent sequences: A139626 A139627 A139628 this_sequence A139630 A139631 A139632

Sequence in context: A147923 A144690 A118305 this_sequence A057497 A063627 A069014

KEYWORD

more,nonn

AUTHOR

Benoit Jubin (benoit_jubin(AT)yahoo.fr), May 01 2008

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Last modified November 3 12:59 EST 2009. Contains 165766 sequences.


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