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, 0, 0), (1, -1, 0), (1, -1, 1), (1, 1, 0), (1, 1, 1)}.
A151025
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, 0, 0), (1, -1, 0), (1, -1, 1), (1, 1, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =40a(4) =184a(5) =824a(6) =3864a(7) =17984a(8) =85184a(9) =403712a(10) =1930496a(11) =9244544a(12) =44489600a(13) =214497152a(14) =1037518208a(15) =5026380800a(16) =24405484544a(17) =118666545152a(18) =577960470528
External references
- oeis: A151025