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), (1, -1, 1), (1, 0, 1), (1, 1, -1), (1, 1, 1)}.
A151008
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), (1, -1, 1), (1, 0, 1), (1, 1, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =38a(4) =181a(5) =843a(6) =4094a(7) =19725a(8) =96741a(9) =473095a(10) =2333497a(11) =11499024a(12) =56921007a(13) =281721629a(14) =1397891341a(15) =6937364429a(16) =34480929307a(17) =171425261244a(18) =853082126951
External references
- oeis: A151008