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 A115570 Array read by rows: row n (n>= 1) gives the Betti numbers for the n-th element of the Weyl group of type A3 (in Goresky's standard ordering). 12
 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, 3, 3, 1, 1, 2, 2, 1, 1, 3, 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, 5, 5, 3, 1, 1, 3, 5, 6, 4, 1, 1, 3, 5, 5, 3, 1, 1, 3, 5, 6, 5, 3, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,9 COMMENTS The array has 24 rows. LINKS 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 1 2 2 1 1 3 3 1 1 3 3 1 1 3 3 1 CROSSREFS Cf. A115571-A115583. Sequence in context: A115583 A115574 A115577 * A069288 A152831 A097795 Adjacent sequences:  A115567 A115568 A115569 * A115571 A115572 A115573 KEYWORD nonn,tabf,fini,full AUTHOR Roger L. Bagula, Mar 02 2006 STATUS approved

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Last modified June 17 19:57 EDT 2021. Contains 345085 sequences. (Running on oeis4.)