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, -1, 1), (-1, 0, 0), (1, 1, 0), (1, 1, 1)}.
A151019
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, -1, 1), (-1, 0, 0), (1, 1, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =32a(4) =160a(5) =584a(6) =2920a(7) =11360a(8) =56800a(9) =229568a(10) =1147840a(11) =4759424a(12) =23797120a(13) =100509824a(14) =502549120a(15) =2152467968a(16) =10762339840a(17) =46606146560a(18) =233030732800
External references
- oeis: A151019