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Array read by rows: row n (n>= 1) gives the Betti numbers for the n-th element of the affine Weyl group of type A2_tilde (in Goresky's standard ordering).

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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, 2, 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, 4, 3, 1, 1, 3, 5, 4, 1, 1, 3, 4, 3, 1, 1, 3, 4, 3, 1, 1, 3, 5, 4, 1, 1, 3, 4, 3, 1, 1, 3, 5, 4, 1, 1, 3, 5 (list; graph; listen)

	OFFSET	`1,9`
	COMMENT	`There are infinitely many 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 1` `1 2 2 1`
	CROSSREFS	`Sequence in context: A131713 A152846 A152845 this_sequence A152844 A115580 A115583` `Adjacent sequences: A115568 A115569 A115570 this_sequence A115572 A115573 A115574`
	KEYWORD	`nonn,tabf`
	AUTHOR	`Roger L. Bagula, Mar 02 2006`

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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.

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