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), (0, 0, 1), (0, 1, -1), (0, 1, 1), (1, 0, 0)}.
A151101
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), (0, 0, 1), (0, 1, -1), (0, 1, 1), (1, 0, 0)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =43a(4) =183a(5) =797a(6) =3574a(7) =16223a(8) =74919a(9) =348413a(10) =1636926a(11) =7728125a(12) =36735049a(13) =175206264a(14) =839653986a(15) =4034201277a(16) =19450853963a(17) =93965830417a(18) =455155856199
External references
- oeis: A151101