id:A063820 - OEIS Search Results

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Growth series for fundamental group of orientable closed surface of genus 10.

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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)/(1-39x+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`

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

AT&T Labs Research