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), (0, 0, 1), (0, 1, 0), (0, 1, 1), (1, 1, -1)}.
A151095
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), (0, 0, 1), (0, 1, 0), (0, 1, 1), (1, 1, -1)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =43a(4) =179a(5) =771a(6) =3411a(7) =15371a(8) =70283a(9) =324971a(10) =1516195a(11) =7125731a(12) =33691907a(13) =160107627a(14) =764108987a(15) =3660048235a(16) =17586950003a(17) =84740141795a(18) =409295012819
External references
- oeis: A151095