A277869 Number of connected, labeled, unrooted distance-hereditary graphs on n vertices.

1, 1, 4, 38, 596, 13072, 368488, 12693536, 516718112, 24268858144, 1291777104256, 76845808729472, 5052555752407424, 363835557152535808, 28477850136037146112

Offset

0,3

Links

Table of n, a(n) for n=0..14.

C. Chauve, É. Fusy and J. Lumbroso, An Exact Enumeration of Distance-Hereditary Graphs, arXiv:1608.01464 [math.CO], 2016; Proceedings of the Twenty-Eighth Annual ACM-SIAM Symposium On Discrete Algorithms, ANALCO session. SIAM (2017).

Christopher-Lloyd Simon, Topologie et dénombrement des courbes algébriques réelles singulières, arXiv:2106.15450 [math.AG], 2021. ("Topology and enumeration of real singular algebraic curves", In French)

Crossrefs

The unlabeled version is A277862.

Sequence in context: A217900 A077745 A364816 * A138214 A195442 A138562

Adjacent sequences: A277866 A277867 A277868 * A277870 A277871 A277872

Keyword

nonn,more

Author

Jérémie Lumbroso, Nov 02 2016

Status

approved