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), (0, 1, -1), (1, 0, 0), (1, 1, 0)}.
A150364
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), (0, 1, -1), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =92a(5) =360a(6) =1515a(7) =6410a(8) =27833a(9) =122316a(10) =543974a(11) =2443399a(12) =11063866a(13) =50447923a(14) =231486525a(15) =1067574203a(16) =4947914367a(17) =23023490010a(18) =107546786397a(19) =504019149052
External references
- oeis: A150364