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, -1, 1), (1, 1, 0)}.
A150533
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, -1, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =25a(4) =109a(5) =445a(6) =2041a(7) =8903a(8) =41777a(9) =188835a(10) =898187a(11) =4149843a(12) =19910578a(13) =93363307a(14) =450660409a(15) =2135553110a(16) =10354383193a(17) =49450864210a(18) =240592458544
External references
- oeis: A150533