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 A115579 Array read by rows: row n (>= 1) gives the Betti numbers for the n-th element of the affine Weyl group of type A4_tilde (in Goresky's standard ordering). 0
 1, 1, 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, 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, 3, 3, 1, 1, 2, 2, 1, 1, 3, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,13 COMMENTS There are infinitely many rows. LINKS Mark Goresky, Tables of Kazhdan-Lusztig polynomials EXAMPLE Array begins: 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 1 1 2 1 CROSSREFS Cf. A115570-A115583. Sequence in context: A177702 A131534 A061347 * A115573 A152851 A152849 Adjacent sequences:  A115576 A115577 A115578 * A115580 A115581 A115582 KEYWORD nonn,tabf AUTHOR Roger L. Bagula, Mar 04 2006 STATUS approved

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Last modified May 17 12:55 EDT 2021. Contains 343971 sequences. (Running on oeis4.)