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, 0, 0), (1, 0, 1), (1, 1, 0), (1, 1, 1)}.
A151254
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, 0, 0), (1, 0, 1), (1, 1, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =4a(2) =20a(3) =96a(4) =480a(5) =2368a(6) =11840a(7) =58880a(8) =294400a(9) =1468416a(10) =7342080a(11) =36667392a(12) =183336960a(13) =916144128a(14) =4580720640a(15) =22896574464a(16) =114482872320a(17) =572320645120
External references
- oeis: A151254