0,2

INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 193

Index entries for Molien series

G.f.: 1/((1-x)^2*(1-x^10)).

a(n) = sum(floor(j/10), {j,0,n+10}), a(n-10) = (1/2)floor(n/10)*(2n-8-10*floor(n/10)) [From Mitch Harris (maharri(AT)gmail.com), Sep 08 2008]

1/(1-x)^2/(1-x^10)

Adjacent sequences: A008725 A008726 A008727 this_sequence A008729 A008730 A008731

Sequence in context: A064223 A098952 A032518 this_sequence A131242 A083292 A122618

nonn

njas