Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,1 3,2 4,3 5,3 6,3 polyhexes in any orientation on a planar nXnXn triangular grid.
A155396
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,1 3,2 4,3 5,3 6,3 polyhexes in any orientation on a planar nXnXn triangular grid.
Terms
- a(0) =1a(1) =7a(2) =19a(3) =37a(4) =73a(5) =277a(6) =1483a(7) =7857a(8) =35137a(9) =178868a(10) =1263372a(11) =11050443a(12) =103009682a(13) =1012635463
External references
- oeis: A155396