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, -1), (-1, 0, 1), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
A150588
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, -1), (-1, 0, 1), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =26a(4) =113a(5) =468a(6) =2112a(7) =9304a(8) =43238a(9) =196296a(10) =926485a(11) =4294695a(12) =20476313a(13) =96206722a(14) =462235285a(15) =2193431105a(16) =10593761886a(17) =50646226251a(18) =245666390618
External references
- oeis: A150588