Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 3,2 3,3 4,3 5,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155381
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 2,1 3,2 3,3 4,3 5,3 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =85a(5) =361a(6) =2039a(7) =11043a(8) =58636a(9) =358519a(10) =2835051a(11) =27482639a(12) =303186845a(13) =3695516821a(14) =51352363033
External references
- oeis: A155381