A273036 The E_8-Eulerian numbers.

1, 881752, 28336348, 169022824, 300247750, 169022824, 28336348, 881752, 1

Offset

0,2

Comments

a(n) is the number of elements of the Weyl group E_8 that have a descent set of size n.

Sum_{n=0..8} a(n) = 696729600, which is the order of the group E_8.

References

T. K. Petersen, Eulerian Numbers, Birkhauser, 2015, Table 11.5.

Links

Table of n, a(n) for n=0..8.

Crossrefs

Cf. A008292, A060187, A066094, A273000, A273035.

Sequence in context: A254387 A254394 A253982 * A251409 A128286 A250571

Adjacent sequences: A273033 A273034 A273035 * A273037 A273038 A273039

Keyword

nonn,fini,full

Author

Tom Edgar, May 13 2016

Status

approved