A007991 - OEIS

A007991

Poincaré series [or Poincare series] of Lie algebra associated with a certain braid group.

1, 2, 7, 18, 42, 88, 176, 324, 581, 984, 1631, 2594, 4055, 6140, 9164

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OFFSET

2,2

REFERENCES

S. P. Humphries, Braid groups, infinite Lie algebras of Cartan type and rings of invariants, Topology and its Applications, 95 (3) (1999) pp. 173-205.

LINKS

Table of n, a(n) for n=2..16.

S. P. Humphries, Home page

CROSSREFS

Sequence in context: A077802 A095151 A147611 * A037294 A371035 A076857

Adjacent sequences: A007988 A007989 A007990 * A007992 A007993 A007994

KEYWORD

nonn

AUTHOR

Stephen P. Humphries

STATUS

approved