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, 0, 0), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.
A151046
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, 0, 0), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =35a(4) =132a(5) =516a(6) =2086a(7) =8585a(8) =36040a(9) =153062a(10) =658558a(11) =2856372a(12) =12502898a(13) =55051180a(14) =244048234a(15) =1086807005a(16) =4865282682a(17) =21858557906a(18) =98615835998a(19) =446208697638
External references
- oeis: A151046