0,3

D. J. Benson, Polynomial Invariants of Finite Groups, Cambridge, 1993, p. 105.

Index entries for Molien series

(1+x^21)/(1-x)/(1-x^2)/(1-x^3)/(1-x^4)/(1-x^5)/(1-x^6)/(1-x^7)

Sequence in context: A049756 A026813 A008636 this_sequence A035969 A042953 A023028

Adjacent sequences: A008627 A008628 A008629 this_sequence A008631 A008632 A008633

nonn,easy

njas