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A115576 Array read by rows: row n (>= 1) gives the Betti numbers for the n-th element of the Weyl group of type D4 (in Goresky's standard ordering). 0
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, 3, 3, 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, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,11

COMMENTS

The array has 192 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: A115582 A115575 A115581 * A115572 A152847 A152846

Adjacent sequences:  A115573 A115574 A115575 * A115577 A115578 A115579

KEYWORD

nonn,fini,tabf

AUTHOR

Roger L. Bagula, Mar 04 2006

STATUS

approved

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Last modified June 21 07:27 EDT 2021. Contains 345358 sequences. (Running on oeis4.)