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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).
4
OFFSET
0,2
CROSSREFS
Sequence in context: A317351 A296108 A118305 * A057497 A063627 A069014
KEYWORD
more,nonn
AUTHOR
Benoit Jubin, May 01 2008
STATUS
approved