|
Search: id:A089012
|
|
|
| A089012 |
|
1 is n is an exponent of the Weyl group W(E_6), 0 otherwise. |
|
+0
1
|
|
| 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
The exponents are 1, 4, 5, 7, 8, 11. The point of this sequence is that a similar generating function gives the exponents for any finite Coxeter group.
|
|
FORMULA
|
G.f. = (1-x^8)*(1-x^9)/((1-x^3)*(1-x^4))
|
|
CROSSREFS
|
Cf. A005556.
Adjacent sequences: A089009 A089010 A089011 this_sequence A089013 A089014 A089015
Sequence in context: A068428 A078650 A028863 this_sequence A083035 A051341 A057211
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Paul Boddington (psb(AT)maths.warwick.ac.uk), Nov 03 2003
|
|
|
Search completed in 0.002 seconds
|
