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), (-1, 1, -1), (0, 1, -1), (1, -1, -1), (1, 0, 1)}.
A148653
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), (-1, 1, -1), (0, 1, -1), (1, -1, -1), (1, 0, 1)}.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =6a(4) =24a(5) =64a(6) =225a(7) =764a(8) =2722a(9) =9580a(10) =35333a(11) =131684a(12) =492514a(13) =1858925a(14) =7193777a(15) =27685349a(16) =107329006a(17) =422367498a(18) =1663382081a(19) =6569551415a(20) =26183491349a(21) =104742616214a(22) =419747368413
External references
- oeis: A148653