|
Search: id:A063820
|
|
|
| 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: A049396 A135644 A165371 this_sequence A158703 A009984 A041761
Adjacent sequences: A063817 A063818 A063819 this_sequence A063821 A063822 A063823
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com), Aug 21 2001
|
|
|
Search completed in 0.002 seconds
|
