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, 0), (-1, 1, 1), (0, 1, 0), (1, 0, 1), (1, 1, -1)}.
A150297
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, 0), (-1, 1, 1), (0, 1, 0), (1, 0, 1), (1, 1, -1)}.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =23a(4) =96a(5) =412a(6) =1819a(7) =8165a(8) =37244a(9) =172041a(10) =802068a(11) =3766707a(12) =17797247a(13) =84512353a(14) =403062511a(15) =1929377961a(16) =9264898815a(17) =44613567669a(18) =215353482998
External references
- oeis: A150297