A155444 - OEIS

A155444

Number of ways to place zero or more nonadjacent 2,0 3,0 4,1 4,2 4,3 4,4 5,1 6,2 polyhexes in any orientation on a planar nXnXn triangular grid.

1, 7, 19, 37, 61, 215, 976, 6510, 31895, 148311, 835105, 6965183, 70259384, 771053702, 8287139754, 101882179551

(list; graph; refs; listen; history; text; internal format)

OFFSET

6,2

LINKS

EXAMPLE

Maximal 11 X 11 X 11 example

.............0

............0.0

...........1.0.0

..........1.0.0.0

.........0.1.1.1.1

........0.1.0.0.0.0

.......1.0.1.0.1.0.0

......0.1.0.0.0.1.0.0

.....0.0.1.0.1.0.1.0.1

....0.0.0.1.1.0.0.1.1.0

...0.0.1.1.0.0.1.1.0.0.0

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved