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, 0, 1), (0, 1, 0), (1, 0, 0)}.
A151036
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, 0, 1), (0, 1, 0), (1, 0, 0)}.
Terms
- a(0) =1a(1) =3a(2) =9a(3) =31a(4) =117a(5) =456a(6) =1835a(7) =7575a(8) =31789a(9) =135449a(10) =584041a(11) =2541918a(12) =11157475a(13) =49317508a(14) =219300301a(15) =980391826a(16) =4403056567a(17) =19856229162a(18) =89874329340a(19) =408123817360
External references
- oeis: A151036