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, 1), (0, 1, -1), (1, 0, 1), (1, 1, 1)}.
A150744
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, 1), (0, 1, -1), (1, 0, 1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =29a(4) =125a(5) =522a(6) =2368a(7) =10369a(8) =48427a(9) =218353a(10) =1033431a(11) =4763553a(12) =22711231a(13) =106299072a(14) =509809530a(15) =2410736596a(16) =11620607296a(17) =55359720508a(18) =267922804476
External references
- oeis: A150744