A305375 Number of crossing-maximal order types of n points in the plane.

1, 1, 1, 1, 1, 3, 17, 489, 28103, 2866895

Offset

1,6

Links

Table of n, a(n) for n=1..10.

Alexander Pilz and Emo Welzl, Order on order types, Discrete & Computational Geometry, 59 (No. 4, 2015), 886-922.

Crossrefs

Cf. A006247, A305376.

Sequence in context: A332758 A023150 A257116 * A128300 A292082 A001601

Adjacent sequences: A305372 A305373 A305374 * A305376 A305377 A305378

Keyword

nonn,more

Author

N. J. A. Sloane, Jun 12 2018

Status

approved