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A101389 Number of n-vertex unlabeled oriented graphs without endpoints. +0
1
1, 1, 3, 21, 369, 16929, 1913682, 546626268 (list; graph; listen)
OFFSET

1,3

CROSSREFS

Cf. A100569 (labeled case), A100548, A004110, A004108, A059166, A059167, A001174.

Sequence in context: A125054 A113085 A083228 this_sequence A108716 A084620 A120603

Adjacent sequences: A101386 A101387 A101388 this_sequence A101390 A101391 A101392

KEYWORD

more,nonn

AUTHOR

Goran Kilibarda, Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 14 2005

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Last modified March 12 10:54 EST 2010. Contains 173097 sequences.


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