A155401 - OEIS

A155401

Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,1 4,1 5,2 6,2 7,2 polyhexes in any orientation on a planar nXnXn triangular grid.

1, 7, 19, 64, 211, 828, 3688, 18091, 101434, 633477, 4772999, 40520506

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

OFFSET

7,2

LINKS

EXAMPLE

Maximal 10 X 10 X 10 example

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

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

..........1.0.1

.........1.0.0.1

........1.0.0.0.1

.......0.1.0.0.1.0

......0.1.0.0.0.1.0

.....0.0.1.0.0.1.0.0

....0.0.1.0.0.0.1.0.0

...0.0.1.0.0.0.0.1.0.0

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved