A191015 Number of isomorphism classes of Coxeter systems with n reflections.

1, 1, 2, 3, 4, 7, 9, 12, 18, 25, 32, 47, 61, 79, 108, 143, 182, 246, 315, 404, 526, 674, 849, 1102, 1389, 1745, 2215, 2788, 3467, 4384

Offset: 1

Author

Matthew J. Samuel, May 24 2011

Keywords

• nonn

References

• Anders Björner, Francesco Brenti, Combinatorics of Coxeter groups, Graduate Texts in Mathematics, 231. Springer, New York, 2005.