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, 0), (1, 1, -1), (1, 1, 1)}.
A149740
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, 0), (1, 1, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =17a(4) =77a(5) =307a(6) =1417a(7) =6183a(8) =28931a(9) =130781a(10) =620821a(11) =2872353a(12) =13745911a(13) =64565453a(14) =311110427a(15) =1476837549a(16) =7149499395a(17) =34210853287a(18) =166255385207a(19) =800280846231
External references
- oeis: A149740