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), (-1, 1, 1), (1, 0, 0), (1, 1, 0)}.
A150314
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), (-1, 1, 1), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =21a(4) =88a(5) =307a(6) =1363a(7) =5118a(8) =23368a(9) =91706a(10) =426632a(11) =1725083a(12) =8126465a(13) =33580032a(14) =159584952a(15) =670363359a(16) =3207090656a(17) =13647501779a(18) =65629767424a(19) =282226077317
External references
- oeis: A150314