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Search: id:A053468
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A053468 Number of directed 3-multigraphs on n nodes. +0
3
1, 10, 720, 703760, 9168331776, 1601371799340544, 3837878966366932639744, 128777257564337108286016980992, 61454877497308462618188532330410573824, 422314689395950135433730499958070655419345928192 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Cf. A000273.

Sequence in context: A058174 A006435 A108603 this_sequence A008272 A015509 A117257

Adjacent sequences: A053465 A053466 A053467 this_sequence A053469 A053470 A053471

KEYWORD

easy,nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 13 2000

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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