A307147 - OEIS

A307147

Number of symmetry classes of coarsest matroid subdivisions in the hypersimplex Delta(4,n) that are either corank subdivisions or are in the image of the Stiefel map.

2, 5, 44, 3149

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

OFFSET

6,1

REFERENCES

Schröter, Benjamin. "Multi-splits and tropical linear spaces from nested matroids." Discrete & Computational Geometry 61.3 (2019): 661-685.

LINKS

Table of n, a(n) for n=6..9.

CROSSREFS

Sequence in context: A366406 A088309 A334252 * A056680 A005166 A121621

Adjacent sequences: A307144 A307145 A307146 * A307148 A307149 A307150

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Mar 28 2019

STATUS

approved