OFFSET
0,3
LINKS
Bjarki Ágúst Guðmundsson, Table of n, a(n) for n = 0..1000
Anders Claesson, Bjarki Ágúst Guðmundsson, Enumerating permutations sortable by k passes through a pop-stack, arXiv:1710.04978 [math.CO], 2017.
Bjarki Ágúst Guðmundsson, generating function.
Bjarki Ágúst Guðmundsson, PARI script.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Bjarki Ágúst Guðmundsson, Oct 16 2017
STATUS
approved