id:A063817 - OEIS Search Results

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Growth series for fundamental group of orientable closed surface of genus 7.

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1, 28, 756, 20412, 551124, 14880348, 401769396, 10847773692, 292889889684, 7908027021468, 213516729579636, 5764951698650172, 155653695863554644, 4202649788315975388, 113471544284531335448, 3063731695682346056340 (list; graph; listen)

	OFFSET	`0,2`
	REFERENCES	`P. de la Harpe, Topics in Geometric Group Theory, Univ. Chicago Press, 2000, p. 160, Sigma(Gamma_7, S_7; z).`
	FORMULA	`G.f.: (1+x)(1-x^14)/(1-27x+27*x^14-x^15).`
	CROSSREFS	`Sequence in context: A004293 A012808 A097834 this_sequence A113532 A097311 A009972` `Adjacent sequences: A063814 A063815 A063816 this_sequence A063818 A063819 A063820`
	KEYWORD	`nonn`
	AUTHOR	`njas, Aug 21 2001`

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

AT&T Labs Research