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, 0), (0, 0, 1), (0, 1, -1), (1, -1, 1)}.
A148167
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, 0), (0, 0, 1), (0, 1, -1), (1, -1, 1)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =11a(5) =31a(6) =101a(7) =338a(8) =1184a(9) =4266a(10) =15800a(11) =59826a(12) =231048a(13) =906627a(14) =3607644a(15) =14528293a(16) =59125375a(17) =242878663a(18) =1006043717a(19) =4198395624a(20) =17638730428a(21) =74557621273a(22) =316896467550
External references
- oeis: A148167