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, 0, 1), (0, 1, -1), (1, -1, 1), (1, 0, 0), (1, 0, 1)}.
A150491
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, 0, 1), (0, 1, -1), (1, -1, 1), (1, 0, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =25a(4) =100a(5) =416a(6) =1798a(7) =7954a(8) =35848a(9) =163889a(10) =757613a(11) =3534070a(12) =16606644a(13) =78512097a(14) =373082494a(15) =1780537043a(16) =8529153352a(17) =40987209812a(18) =197514653523a(19) =954133743905
External references
- oeis: A150491