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), (0, 0, -1), (0, 0, 1), (0, 1, 0), (1, 0, 1)}.
A151096
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), (0, 0, -1), (0, 0, 1), (0, 1, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =43a(4) =180a(5) =774a(6) =3420a(7) =15325a(8) =69736a(9) =320177a(10) =1484157a(11) =6921368a(12) =32488328a(13) =153168686a(14) =725511789a(15) =3447958237a(16) =16443901747a(17) =78628116041a(18) =376994548410
External references
- oeis: A151096