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, 0), (-1, 1, 1), (0, 1, 1), (1, -1, 0), (1, 1, -1)}.
A149067
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, 0), (-1, 1, 1), (0, 1, 1), (1, -1, 0), (1, 1, -1)}.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =41a(5) =165a(6) =694a(7) =2988a(8) =13193a(9) =59066a(10) =268379a(11) =1231626a(12) =5704380a(13) =26611742a(14) =124914243a(15) =589486310a(16) =2794536997a(17) =13300945698a(18) =63527577649a(19) =304353789667
External references
- oeis: A149067