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A115575
Array read by rows: row n (>= 1) gives the Betti numbers for the n-th element of the Weyl group of type C4 (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, 2, 2, 1, 1, 3, 3, 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, 2, 2, 1, 1, 3, 3
OFFSET
1,11
COMMENTS
The array has 384 rows.
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
KEYWORD
nonn,fini,tabf
AUTHOR
Roger L. Bagula, Mar 04 2006
STATUS
approved