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A063820 Growth series for fundamental group of orientable closed surface of genus 10. 1
1, 40, 1560, 60840, 2372760, 92537640, 3608967960, 140749750440, 5489240267160, 214080370419240, 8349134446350360, 325616243407664040, 12699033492898897560, 495262306223057004840, 19315229942699223188760, 753293967765269704361640 (list; graph; refs; listen; history; internal format)
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: A170673 A170721 * A170759 A158703 A009984 A041761

Adjacent sequences:  A063817 A063818 A063819 * A063821 A063822 A063823

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Aug 21 2001

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Last modified February 16 04:47 EST 2012. Contains 205860 sequences.