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), (1, 0, 0), (1, 0, 1), (1, 1, 0)}.
A151167
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), (1, 0, 0), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =47a(4) =218a(5) =965a(6) =4599a(7) =21221a(8) =102970a(9) =486505a(10) =2382781a(11) =11426421a(12) =56269394a(13) =272411885a(14) =1346576694a(15) =6562913261a(16) =32525351076a(17) =159299916487a(18) =790932819647
External references
- oeis: A151167