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A013980 Number of commutative elements in Coxeter group F_n. 0
24, 106, 464, 2003, 8560, 36333, 153584, 647775 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

REFERENCES

C. Kenneth Fan, Structure of a Hecke algebra quotient. J. Amer. Math. Soc. 10 (1997), no. 1, 139-167.

C. K. Fan, A Hecke algebra quotient and some combinatorial applications. J. Algebraic Combin. 5 (1996), no. 3, 175-189.

LINKS

Table of n, a(n) for n=3..10.

CROSSREFS

Sequence in context: A011199 A213874 A100149 * A100150 A060334 A187163

Adjacent sequences:  A013977 A013978 A013979 * A013981 A013982 A013983

KEYWORD

nonn

AUTHOR

Ken Fan

STATUS

approved

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Last modified December 21 17:15 EST 2014. Contains 252324 sequences.