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, 1), (-1, 1, -1), (0, 0, 1), (1, 0, 0), (1, 0, 1)}.
A151051
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, 1), (-1, 1, -1), (0, 0, 1), (1, 0, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =37a(4) =143a(5) =585a(6) =2474a(7) =10676a(8) =46847a(9) =208584a(10) =940109a(11) =4278267a(12) =19615829a(13) =90525966a(14) =420246448a(15) =1960950448a(16) =9190034528a(17) =43231693467a(18) =204062350204a(19) =966205062996
External references
- oeis: A151051