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A008720 Molien series for 3-dimensional group [2,5] = *225. 1
1, 0, 2, 0, 3, 1, 4, 2, 5, 3, 7, 4, 9, 5, 11, 7, 13, 9, 15, 11, 18, 13, 21, 15, 24, 18, 27, 21, 30, 24, 34, 27, 38, 30, 42, 34, 46, 38, 50, 42, 55, 46, 60, 50, 65, 55, 70, 60, 75, 65, 81, 70, 87, 75, 93, 81, 99, 87, 105 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..58.

INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 223

Index entries for Molien series

Index entries for linear recurrences with constant coefficients, signature (0, 2, 0, -1, 1, 0, -2, 0, 1).

MAPLE

1/(1-x^2)^2/(1-x^5)

MATHEMATICA

LinearRecurrence[{0, 2, 0, -1, 1, 0, -2, 0, 1}, {1, 0, 2, 0, 3, 1, 4, 2, 5}, 60] (* Harvey P. Dale, Dec 10 2015 *)

CROSSREFS

Sequence in context: A097065 A084964 A267182 * A263352 A008734 A226649

Adjacent sequences:  A008717 A008718 A008719 * A008721 A008722 A008723

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 26 16:24 EDT 2016. Contains 273352 sequences.