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, 0, 1), (0, 1, -1), (1, 0, 0), (1, 1, 1)}.
A150734
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, 0, 1), (0, 1, -1), (1, 0, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =29a(4) =122a(5) =513a(6) =2243a(7) =9961a(8) =44856a(9) =204818a(10) =941322a(11) =4369665a(12) =20369726a(13) =95602287a(14) =450244292a(15) =2130136795a(16) =10108543290a(17) =48122370353a(18) =229702139387
External references
- oeis: A150734