A115574 Array read by rows: row n (>= 1) gives the Betti numbers for the n-th element of the Weyl group of type C3 (in Goresky's standard ordering).

1, 1, 1, 1, 1, 1, 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, 2, 2, 1, 1, 3, 3, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 2, 2, 2, 1, 1, 3, 4, 3, 1, 1, 3, 4, 3, 1, 1, 3, 4, 3, 1, 1, 3, 4, 3, 1, 1, 3, 5, 4, 1, 1, 3, 4, 3, 1, 1, 3, 4, 3, 1, 1, 3, 4, 4, 3, 1, 1, 3, 5

Offset

1,9

Comments

The array has 48 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 2 1
1 2 1
1 2 1
1 2 1
1 2 1

Crossrefs

Cf. A115570-A115583.

Sequence in context: A152844 A115580 A115583 * A115577 A115570 A069288

Adjacent sequences: A115571 A115572 A115573 * A115575 A115576 A115577

Keyword

nonn,fini,tabf

Author

Roger L. Bagula, Mar 04 2006

Status

approved