Number of n-step walks on cubic lattice starting at (0,0,0), ending at (floor(n/3), floor((n+1)/3), floor((n+2)/3)) and using steps (0,0,1), (0,1,0), (1,0,0), (-1,1,1), (1,-1,1), and (1,1,-1).
A328345
Number of n-step walks on cubic lattice starting at (0,0,0), ending at (floor(n/3), floor((n+1)/3), floor((n+2)/3)) and using steps (0,0,1), (0,1,0), (1,0,0), (-1,1,1), (1,-1,1), and (1,1,-1).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =21a(4) =88a(5) =440a(6) =2385a(7) =11781a(8) =62832a(9) =352128a(10) =1842240a(11) =10132320a(12) =57775905a(13) =311810785a(14) =1746140396a(15) =10060071021a(16) =55367204256a(17) =313747490784
External references
- oeis: A328345