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, 0), (0, 0, 1), (0, 1, 1), (1, 1, 0)}.
A151064
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, 0), (0, 0, 1), (0, 1, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =39a(4) =156a(5) =642a(6) =2722a(7) =11667a(8) =50698a(9) =222694a(10) =984882a(11) =4388122a(12) =19660792a(13) =88498016a(14) =400130204a(15) =1815615083a(16) =8265315422a(17) =37738357610a(18) =172749251346a(19) =792644489638
External references
- oeis: A151064