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Search: id:A006433
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A006433 Number of tree-rooted planar maps.
(Formerly M3720)
+0
1
0, 4, 175, 3324, 42469, 429120, 3711027, 28723640, 204598130, 1366223880, 8664086470 (list; graph; listen)
OFFSET

1,2

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: A051476 A057140 A081783 this_sequence A113254 A127606 A041945

Adjacent sequences: A006430 A006431 A006432 this_sequence A006434 A006435 A006436

KEYWORD

nonn

AUTHOR

njas

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.


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