A180271 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A180271

The number of multiplicity-free labeled floor diagrams with n nodes

0

1, 1, 2, 7, 36, 245, 2081, 21231

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Table of n, a(n) for n=1..8.

Fomin, Mikhalkin, Labeled floor diagrams for plane curves

CROSSREFS

Sequence in context: A191493 A095793 A029768 * A167199 A007889 A125033

Adjacent sequences: A180268 A180269 A180270 * A180272 A180273 A180274

KEYWORD

hard,more,nonn

AUTHOR

Kevin Hu (10thsymphony(AT)gmail.com), Aug 23 2010

STATUS

approved