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), (0, 0, 1), (0, 1, 1), (1, 1, -1), (1, 1, 0)}.
A151193
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), (0, 0, 1), (0, 1, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =52a(4) =236a(5) =1099a(6) =5209a(7) =24983a(8) =120848a(9) =588250a(10) =2877078a(11) =14123445a(12) =69532641a(13) =343117964a(14) =1696341939a(15) =8399457737a(16) =41642983007a(17) =206677889489
External references
- oeis: A151193