Number of ways to place zero or more nonadjacent 1,0 2,0 2,2 3,0 3,2 4,1 4,2 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.
A155440
Number of ways to place zero or more nonadjacent 1,0 2,0 2,2 3,0 3,2 4,1 4,2 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =76a(5) =332a(6) =1823a(7) =10749a(8) =53165a(9) =313295a(10) =2436626a(11) =24495034a(12) =277288339a(13) =3304478802a(14) =44732292922a(15) =736452039398
External references
- oeis: A155440