In "Computing Grobner Fans" by Fukuda/Jensen/Thomas on page 2210 in Table 1 are the numbers (1,20,120,300,330,132) for some statistics on Grobner fans for Grass(2,5). This is a vector found in A126216, A033282, and A133437 of <http://oeis.org/> related to Stasheff associahedra (also to Lagrange inversion, Dyck paths, and other combinatorial constructs). Is there a more general connection? 



Grobner fan linked to associahedra?
This paper is about Grobner fans and uses a Stasheff associahedron in an example.
<http://www.springerlink.com/content/y102175023224321/fulltext.pdf>


