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, 0), (0, 0, 1), (0, 1, 0), (1, 0, 1)}.
A151034
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, 0), (0, 0, 1), (0, 1, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =3a(2) =9a(3) =31a(4) =117a(5) =451a(6) =1777a(7) =7199a(8) =29637a(9) =123299a(10) =518993a(11) =2206159a(12) =9445397a(13) =40707171a(14) =176521745a(15) =769398527a(16) =3368657701a(17) =14810903779a(18) =65363377937a(19) =289425316975
External references
- oeis: A151034