A155396 - OEIS

A155396

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

1, 7, 19, 37, 73, 277, 1483, 7857, 35137, 178868, 1263372, 11050443, 103009682, 1012635463

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

OFFSET

6,2

LINKS

EXAMPLE

Maximal 10 X 10 X 10 example

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

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

..........0.0.0

.........0.0.0.0

........0.1.1.1.0

.......0.1.0.0.0.0

......0.0.1.0.1.1.1

.....1.1.1.0.1.0.0.0

....0.0.0.0.0.1.0.0.0

...0.0.0.1.1.1.0.0.0.0

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved