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, 1, 1), (1, 0, 1), (1, 1, 0)}.
A151085
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, 1, 1), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =43a(4) =182a(5) =803a(6) =3635a(7) =16537a(8) =76742a(9) =357427a(10) =1678899a(11) =7932323a(12) =37617702a(13) =179305425a(14) =856913256a(15) =4108608935a(16) =19750080914a(17) =95143303843a(18) =459343861243
External references
- oeis: A151085