A155399 - OEIS

A155399

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

1, 7, 19, 43, 239, 1041, 3863, 18481, 111137, 720077, 5291974, 48305684

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

OFFSET

6,2

LINKS

EXAMPLE

Maximal 10 X 10 X 10 example

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

...........1.1

..........0.0.1

.........0.0.0.1

........1.1.0.1.0

.......1.0.0.0.1.0

......1.0.0.0.0.1.1

.....0.1.0.0.0.0.0.0

....0.1.0.1.1.1.0.0.1

...1.1.0.1.0.0.1.1.1.0

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved