OFFSET
0,2
COMMENTS
These are walks in the first octant of the cubic lattice, never leaving the three walls forming the octant. The walls are the sets of points (x>=0, y>=0, z=0), (x>=0, y=0, z>=0), and (x=0, y>=0, z>=0) with (x,y,z) in Z^3.
LINKS
CROSSREFS
KEYWORD
nonn,walk
AUTHOR
Francois Alcover, Nov 30 2019
EXTENSIONS
a(18)-a(25) Scott R. Shannon, Aug 17 2020
a(26)-a(30) from Bert Dobbelaere, Oct 28 2023
STATUS
approved