A305376 Number of crossing-minimal order types of n points in the plane.

1, 1, 1, 1, 1, 6, 49, 1179, 55278, 4888160

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, A305375.

Sequence in context: A286799 A245797 A046195 * A024268 A187528 A187699

Adjacent sequences: A305373 A305374 A305375 * A305377 A305378 A305379

Keyword

nonn,more

Author

N. J. A. Sloane, Jun 12 2018

Status

approved