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), (0, 0, -1), (0, 0, 1), (0, 1, 1), (1, 1, -1)}.
A150679
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), (0, 0, -1), (0, 0, 1), (0, 1, 1), (1, 1, -1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =26a(4) =112a(5) =426a(6) =1912a(7) =7866a(8) =36176a(9) =155882a(10) =728352a(11) =3234762a(12) =15281976a(13) =69317882a(14) =330139440a(15) =1520823338a(16) =7288057984a(17) =33970036618a(18) =163582528568a(19) =769502319354
External references
- oeis: A150679