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Search: id:A155350
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| A155350 |
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Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,2 4,2 5,2 6,3 polyhexes in any orientation on a planar nXnXn triangular grid. |
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+0
1
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| 1, 7, 19, 43, 139, 529, 2779, 14903, 85160, 631076, 5508964, 55342292, 627643346
(list; graph; listen)
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OFFSET
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6,2
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EXAMPLE
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Maximal 11 X 11 X 11 example
.............0
............0.0
...........0.0.0
..........0.0.0.1
.........0.1.1.1.0
........0.1.0.0.0.0
.......1.1.0.0.0.0.0
......0.0.0.1.0.0.0.1
.....0.1.1.1.0.1.1.1.0
....0.1.0.0.0.1.0.0.0.0
...1.1.0.0.1.1.0.0.0.0.0
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CROSSREFS
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Sequence in context: A155336 A155427 A155403 this_sequence A155312 A155351 A155430
Adjacent sequences: A155347 A155348 A155349 this_sequence A155351 A155352 A155353
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhhardin(AT)att.net) Jan 22 2009
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