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Search: id:A006434
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A006434 Tree-rooted toroidal maps.
(Formerly M3708)
+0
1
4, 120, 1230, 7424, 32424, 113584, 338742, 893220, 2136618, 4721728, 9770904 (list; graph; listen)
OFFSET

1,1

REFERENCES

Walsh, T. R. S.; Lehman, A. B.; Counting rooted maps by genus. III: Nonseparable maps. J. Combinatorial Theory Ser. B 18 (1975), 222-259.

CROSSREFS

Sequence in context: A096464 A064204 A054644 this_sequence A002702 A068204 A001332

Adjacent sequences: A006431 A006432 A006433 this_sequence A006435 A006436 A006437

KEYWORD

nonn

AUTHOR

njas

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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