A011555 Number of vertices of secondary polytope for triangle X n-simplex.

6, 108, 4488, 376200

Offset

1,1

References

Gelfand, Kapranov and Zelevinsky, Discriminants, Resultants and Multidimensional Determinants, Birkhäuser, 1994, pp. 243-250.

Links

Table of n, a(n) for n=1..4.

J. A. de Loera, Nonregular triangulations of products of simplices, Discrete Comp. Geom. 15(3) (1996), 253-264.

Crossrefs

Cf. A011556, A011781, A122722, A273464, A326367, A326368, A326369.

Sequence in context: A114310 A221954 A167484 * A122722 A127946 A012503

Adjacent sequences: A011552 A011553 A011554 * A011556 A011557 A011558

Keyword

nonn,hard,more

Author

N. J. A. Sloane

Status

approved