A307145 - OEIS

A307145

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

25, 616, 217630, 561983523

(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: A362473 A218727 A264209 * A061614 A171330 A097780

Adjacent sequences: A307142 A307143 A307144 * A307146 A307147 A307148

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Mar 28 2019

STATUS

approved