Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 1), (1, 0, -1), (1, 1, 0), (1, 1, 1)}.
A150944
Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 1), (1, 0, -1), (1, 1, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =34a(4) =159a(5) =686a(6) =3301a(7) =14993a(8) =73230a(9) =342078a(10) =1683261a(11) =8002664a(12) =39548594a(13) =190227852a(14) =942786059a(15) =4571684692a(16) =22702890172a(17) =110740507104a(18) =550721090484
External references
- oeis: A150944