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, 0, 0), (0, -1, 1), (0, 0, 1), (0, 1, -1), (1, 1, 1)}.
A150868
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, 0, 0), (0, -1, 1), (0, 0, 1), (0, 1, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =33a(4) =145a(5) =651a(6) =2985a(7) =13880a(8) =65145a(9) =308299a(10) =1467469a(11) =7019724a(12) =33714258a(13) =162456912a(14) =785064404a(15) =3802866986a(16) =18459984428a(17) =89772495880a(18) =437275226693
External references
- oeis: A150868