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A063821
Growth series for fundamental group of orientable closed surface of genus 11.
1
1, 44, 1892, 81356, 3498308, 150427244, 6468371492, 278139974156, 11960018888708, 514280812214444, 22114074925221092, 950905221784506956, 40888924536733799108, 1758223755079553361644, 75603621468420794550692, 3250955723142094165679756
OFFSET
0,2
REFERENCES
P. de la Harpe, Topics in Geometric Group Theory, Univ. Chicago Press, 2000, p. 160, Sigma(Gamma_11, S_11; z).
LINKS
Index entries for linear recurrences with constant coefficients, signature (43,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-43,1).
FORMULA
G.f.: (1+x)*(1-x^22)/(1-43*x+43*x^22-x^23).
MATHEMATICA
CoefficientList[Series[(1+x)(1-x^22)/(1-43x+43x^22-x^23), {x, 0, 30}], x] (* Harvey P. Dale, Aug 16 2011 *)
PROG
(PARI) Vec((1+x)*(1-x^22)/(1-43*x+43*x^22-x^23)+O(x^99)) \\ Charles R Greathouse IV, Jul 01 2013
CROSSREFS
Sequence in context: A170629 A170677 A170725 * A170763 A218746 A158751
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Aug 21 2001
STATUS
approved