Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,0 4,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.
A155281
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,0 4,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =25a(3) =76a(4) =289a(5) =1579a(6) =11207a(7) =100558a(8) =1021474a(9) =12631241a(10) =194406300a(11) =3780423351a(12) =90519767008
External references
- oeis: A155281