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)}.
A151080
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) =3a(2) =10a(3) =41a(4) =168a(5) =727a(6) =3219a(7) =14413a(8) =65753a(9) =301757a(10) =1398665a(11) =6523081a(12) =30582968a(13) =144132159a(14) =681785699a(15) =3237085331a(16) =15416598377a(17) =73621489721a(18) =352454733824
External references
- oeis: A151080