A155318 - OEIS

A155318

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

1, 7, 19, 37, 162, 682, 2862, 19723, 141397, 1047499, 10569960, 123328797, 1599865270, 26321921029

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

OFFSET

5,2

LINKS

EXAMPLE

Maximal 9 X 9 X 9 example

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

..........1.1

.........0.1.1

........0.1.0.0

.......0.1.0.1.0

......0.1.0.0.1.0

.....1.0.0.0.0.1.0

....1.1.1.1.1.0.1.1

...0.1.0.0.0.0.1.1.0

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved