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, 1), (0, 1, 0), (1, -1, 1), (1, 0, -1), (1, 1, 1)}.
A150893
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, 1), (0, 1, 0), (1, -1, 1), (1, 0, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =34a(4) =154a(5) =718a(6) =3410a(7) =16382a(8) =79390a(9) =387116a(10) =1896476a(11) =9324092a(12) =45970110a(13) =227144536a(14) =1124339206a(15) =5573348284a(16) =27659659494a(17) =137404653624a(18) =683140842472
External references
- oeis: A150893