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, 1, 1), (0, 0, 1), (1, 0, 0), (1, 1, 0)}.
A151102
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, 1, 1), (0, 0, 1), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =43a(4) =183a(5) =804a(6) =3593a(7) =16403a(8) =75914a(9) =354170a(10) =1665099a(11) =7885983a(12) =37532516a(13) =179316553a(14) =860227887a(15) =4140471444a(16) =19977956382a(17) =96628135136a(18) =468432058624
External references
- oeis: A151102