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Search: id:A063820
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A063820 Growth series for fundamental group of orientable closed surface of genus 10. +0
1
1, 40, 1560, 60840, 2372760, 92537640, 3608967960, 140749750440, 5489240267160, 214080370419240, 8349134446350360, 325616243407664040, 12699033492898897560, 495262306223057004840, 19315229942699223188760, 753293967765269704361640 (list; graph; listen)
OFFSET

0,2

REFERENCES

P. de la Harpe, Topics in Geometric Group Theory, Univ. Chicago Press, 2000, p. 160, Sigma(Gamma_10, S_10; z).

FORMULA

G.f.: (1+x)*(1-x^20)/(1-39*x+39*x^20-x^21).

CROSSREFS

Sequence in context: A006101 A049396 A135644 this_sequence A009984 A041761 A140702

Adjacent sequences: A063817 A063818 A063819 this_sequence A063821 A063822 A063823

KEYWORD

nonn

AUTHOR

njas, Aug 21 2001

page 1

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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