Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 3,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.

A155264

Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 3,1 4,2 polyhexes in any orientation on a planar nXnXn triangular grid.

Terms

    a(0) =1a(1) =13a(2) =37a(3) =79a(4) =343a(5) =3883a(6) =32621a(7) =226143a(8) =2442908a(9) =45791330a(10) =912526379a(11) =19385105798a(12) =531941059542

External references