A115582 Array read by rows: row n (>= 1) gives the Betti numbers for the n-th element of the affine Weyl group of type C3_tilde (in Goresky's standard ordering).

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3

Offset

1,11

Comments

There are infinitely many rows.

Links

Table of n, a(n) for n=1..99.

Mark Goresky, Tables of Kazhdan-Lusztig polynomials

Example

Array begins:
1
1 1
1 1
1 1
1 1
1 2 1
1 2 1
1 2 1
1 2 1

Crossrefs

Cf. A115570-A115583.

Sequence in context: A152849 A115578 A152848 * A115575 A115581 A115576

Adjacent sequences: A115579 A115580 A115581 * A115583 A115584 A115585

Keyword

nonn,tabf

Author

Roger L. Bagula, Mar 04 2006

Status

approved