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), (-1, 0, 1), (1, -1, -1), (1, 0, 1), (1, 1, 0)}.
A150434
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), (-1, 0, 1), (1, -1, -1), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =24a(4) =99a(5) =383a(6) =1662a(7) =6887a(8) =30424a(9) =131019a(10) =586670a(11) =2581368a(12) =11680736a(13) =52145590a(14) =237672626a(15) =1072548623a(16) =4915035993a(17) =22359367481a(18) =102919456563a(19) =471087278575
External references
- oeis: A150434