OFFSET
0,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..100
FORMULA
a(n) = A152879(2n,n).
EXAMPLE
a(0) = 1: (), the empty Dyck path.
a(1) = 1: //^\\.
a(2) = 4: ///^\/^\\\, //^\\//^\\, //^\/^\\/\, /\//^\/^\\.
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jul 25 2023
STATUS
approved