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Search: id:A155402
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| A155402 |
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Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,1 4,2 5,3 5,4 5,5 polyhexes in any orientation on a planar nXnXn triangular grid. |
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+0
1
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| 1, 4, 10, 22, 40, 161, 580, 2088, 9630, 52661, 324848, 2048063, 15783536, 139241607, 1379819761
(list; graph; listen)
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OFFSET
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5,2
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EXAMPLE
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Maximal 10 X 10 X 10 example
............0
...........0.0
..........1.1.1
.........1.0.0.0
........1.0.1.1.1
.......1.0.0.0.0.1
......0.1.0.0.0.0.1
.....1.0.1.0.0.1.0.1
....0.1.0.0.0.1.0.1.0
...0.0.1.1.1.1.0.1.0.0
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CROSSREFS
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Sequence in context: A155382 A155287 A155337 this_sequence A155232 A023609 A055364
Adjacent sequences: A155399 A155400 A155401 this_sequence A155403 A155404 A155405
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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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