

A333331


Number of integer points in the convex hull in R^n of parking functions of length n.


0




OFFSET

1,2


REFERENCES

R. P. Stanley (Proposer), Problem 12191, Amer. Math. Monthly, 127:6 (2020), 563.


LINKS

Table of n, a(n) for n=1..8.


EXAMPLE

For n=2 the parking functions are (1,1), (1,2), (2,1). They are the only integer points in their convex hull. For n=3, in addition to the 16 parking functions, there is the additional point (2,2,2).


CROSSREFS

Sequence in context: A087885 A178685 A268254 * A198860 A298691 A051442
Adjacent sequences: A333328 A333329 A333330 * A333332 A333333 A333334


KEYWORD

nonn,more


AUTHOR

Richard Stanley, Mar 15 2020


STATUS

approved



