Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 polyhexes in any orientation on a planar nXnXn triangular grid.
A155219
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =4a(2) =10a(3) =45a(4) =176a(5) =1305a(6) =10079a(7) =117352a(8) =1561149a(9) =29980210a(10) =704867467a(11) =22571926686a(12) =912535595499
External references
- oeis: A155219