A155263 - OEIS

A155263

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

1, 13, 37, 100, 864, 5014, 38110, 471622, 5596502, 85749877, 1841914431, 44860386415

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

OFFSET

4,2

COMMENTS

Same series for 1,0 1,1 2,0 3,0 3,1 4,0 polyhexes.

LINKS

EXAMPLE

Maximal 11 X 11 X 11 example

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

............0.1

...........0.0.1

..........1.0.1.0

.........1.0.0.1.1

........0.1.0.0.1.0

.......1.1.0.0.0.0.1

......0.1.0.1.0.0.0.1

.....0.0.0.0.1.1.0.1.0

....1.1.0.1.0.0.1.0.1.1

...0.0.1.1.1.0.1.1.0.1.0

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved