Number of ways to place zero or more nonadjacent 2,1 2,2 3,1 4,0 4,1 5,2 6,3 6,4 polyhexes in any orientation on a planar nXnXn triangular grid.
A155438
Number of ways to place zero or more nonadjacent 2,1 2,2 3,1 4,0 4,1 5,2 6,3 6,4 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =73a(5) =192a(6) =799a(7) =5700a(8) =31065a(9) =143784a(10) =760292a(11) =5454945a(12) =52282160a(13) =593679020a(14) =6642535818a(15) =77363263396
External references
- oeis: A155438