Number of ways to place zero or more nonadjacent 2,1 3,0 3,1 3,3 4,2 4,3 5,1 5,2 polyhexes in any orientation on a planar nXnXn triangular grid.
A155441
Number of ways to place zero or more nonadjacent 2,1 3,0 3,1 3,3 4,2 4,3 5,1 5,2 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =61a(5) =224a(6) =1849a(7) =11422a(8) =49981a(9) =224398a(10) =1780640a(11) =22690257a(12) =281350590a(13) =2951548767a(14) =34313995173a(15) =571260880157
External references
- oeis: A155441