Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 2,2 3,0 3,3 4,1 4,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155433
Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 2,2 3,0 3,3 4,1 4,3 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =4a(2) =13a(3) =28a(4) =49a(5) =76a(6) =487a(7) =3766a(8) =20956a(9) =91261a(10) =385483a(11) =3099937a(12) =40032793a(13) =511624885a(14) =5661397930a(15) =61479664849a(16) =927273309259
External references
- oeis: A155433