login
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
OFFSET
1,9
COMMENTS
The array has 24 rows.
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
KEYWORD
nonn,tabf,fini,full
AUTHOR
Roger L. Bagula, Mar 02 2006
STATUS
approved