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, 0, 1), (1, 0, 0), (1, 1, 0)}.
A151066
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, 0, 1), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =39a(4) =156a(5) =656a(6) =2843a(7) =12506a(8) =56183a(9) =254799a(10) =1167999a(11) =5400258a(12) =25116348a(13) =117576380a(14) =552896051a(15) =2611402749a(16) =12381025083a(17) =58885700834a(18) =280918838846
External references
- oeis: A151066