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Zvonkine D., Counting ramified coverings and intersection theory on Hurwitz spaces II (local structure of Hurwitz spaces and combinatorial results). Moscow Mathematical Journal, vol. 7 (2007), no. 1, 135-162.
Table of n, a(n) for n=1..28.
D. Zvonkine, Home Page
O.g.f.: 192*x^4*(3*x+2)*(5*x+1)/(-1+x)^6 . - R. J. Mathar, Feb 01 2008
Sequence in context: A252904 A252899 A183686 * A203980 A061403 A128967
Adjacent sequences: A134238 A134239 A134240 * A134242 A134243 A134244
N. J. A. Sloane, Jan 30 2008