A307146 Number of symmetry classes of coarsest matroid subdivisions in the hypersimplex Delta(3,n) that are either corank subdivisions or are in the image of the Stiefel map.

1, 3, 5, 12, 48, 288

Offset

5,2

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=5..10.

Crossrefs

Sequence in context: A308544 A307142 A291936 * A293599 A156436 A352145

Adjacent sequences: A307143 A307144 A307145 * A307147 A307148 A307149

Keyword

nonn,more

Author

N. J. A. Sloane, Mar 28 2019

Status

approved