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A155332
Number of ways to place zero or more nonadjacent 1,1 2,1 3,1 4,1 5,0 5,1 6,2 polyhexes in any orientation on a planar nXnXn triangular grid.
0
1, 7, 19, 37, 182, 814, 3007, 16060, 115416, 773749, 6226900, 66290928, 740922136
OFFSET
6,2
EXAMPLE
Maximal 10 X 10 X 10 example
............0
...........1.0
..........0.1.1
.........0.1.0.0
........0.1.0.0.1
.......0.1.0.1.1.0
......0.1.0.0.0.1.0
.....1.0.0.0.0.0.1.0
....0.1.1.1.1.1.0.1.0
...0.1.0.0.0.0.0.0.1.0
CROSSREFS
Sequence in context: A155280 A155365 A155364 * A155388 A155367 A155357
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 22 2009
STATUS
approved