

A290946


Number of chambers of Hassett's decomposition of the weight domain of the moduli space of genus 0 npointed curves.


0




OFFSET

3,2


COMMENTS

a(n) is also the number of goldilocks linear threshold functions on n variables. Asymptotically equal to the total number of linear threshold functions on n variables, divided by 2^n.


LINKS

Table of n, a(n) for n=3..9.
K. Ascher, C. Dube, D. Gershenson, E. Hou, Enumerating Hassett's wall and chamber decomposition of the moduli space of weighted stable curves, arXiv:1709.03663 [math.AG], 2017.


FORMULA

a(n) ~ 2^(n^2  n log n + O(n)).


CROSSREFS

Cf. A000609, A000615, A109456.
Sequence in context: A143705 A222440 A159457 * A223552 A104206 A327596
Adjacent sequences: A290943 A290944 A290945 * A290947 A290948 A290949


KEYWORD

nonn,hard,more


AUTHOR

Connor HalleckDube, Oct 20 2017


STATUS

approved



