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Search: id:A118094
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A118094 Numbers of unrooted hypermaps on the torus with n darts up to orientation-preserving homeomorphism (darts are semi-edges in the particular case of ordinary maps). +0
3
1, 6, 33, 285, 2115, 16533, 126501, 972441, 7451679, 57167260, 438644841, 3369276867, 25905339483, 199408447446, 1536728368389, 11856420991413, 91579955286519, 708146055343668, 5481535740059577, 42473608898628639 (list; graph; listen)
OFFSET

3,2

LINKS

A. Mednykh and R. Nedela, Counting unrooted hypermaps on closed orientable surface, 18th Intern. Conf. Formal Power Series & Algebr. Comb., Jun 19, 2006, San Diego, California (USA).

CROSSREFS

Cf. A090371, A118093.

Sequence in context: A112903 A137970 A024079 this_sequence A121376 A046707 A112289

Adjacent sequences: A118091 A118092 A118093 this_sequence A118095 A118096 A118097

KEYWORD

nonn

AUTHOR

Valery A. Liskovets (liskov(AT)im.bas-net.by), Apr 13 2006

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.


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