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), (0, 1, 1), (1, -1, 1), (1, 0, 0)}.
A150024
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), (0, 1, 1), (1, -1, 1), (1, 0, 0)}.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =18a(4) =67a(5) =265a(6) =1099a(7) =4615a(8) =19918a(9) =86872a(10) =384831a(11) =1723134a(12) =7782492a(13) =35456485a(14) =162474523a(15) =749303875a(16) =3471551664a(17) =16159342707a(18) =75510910742a(19) =354110285481
External references
- oeis: A150024