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A155282
Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,0 4,1 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.
0
1, 13, 37, 201, 1391, 8373, 61097, 625360, 7715937, 116261530, 2213148571
OFFSET
5,2
EXAMPLE
Maximal 12 X 12 X 12 example
..............0
.............0.1
............1.1.0
...........1.0.0.1
..........1.0.1.1.0
.........1.0.1.0.0.0
........0.0.1.0.1.0.1
.......0.0.1.0.0.1.0.1
......1.1.0.0.0.0.1.0.1
.....0.0.1.1.1.1.0.1.0.1
....1.1.0.0.0.0.0.1.0.1.0
...0.0.1.1.1.1.0.0.1.0.1.0
CROSSREFS
Sequence in context: A155241 A155222 A155283 * A193646 A155236 A155277
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 22 2009
STATUS
approved