A063859 - OEIS

%I #15 Feb 22 2023 12:00:33

%S 1,3,8,46,790,37829,4134939

%N Number of abstract dissection types of configurations of n points in 2 dimensions.

%H Lukas Finschi, <a href="https://finschi.com/math/om/">Homepage of Oriented Matroids</a>

%H L. Finschi and K. Fukuda, <a href="http://www.cccg.ca/proceedings/2001/finschi-1053.ps.gz">Complete combinatorial generation of small point set configurations and hyperplane arrangements</a>, pp. 97-100 in Abstracts 13th Canadian Conference on Computational Geometry (CCCG '01), Waterloo, Aug. 13-15, 2001.

%Y A diagonal of A063858.

%Y For n <= 7, this is A241600(n)-1.

%K nonn,more

%O 2,2

%A _N. J. A. Sloane_, Aug 26 2001