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Search: id:A084825
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| A084825 |
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Maximum number of spheres of diameter one that can be packed in a cube of edge length n. |
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+0
3
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OFFSET
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1,2
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COMMENT
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The next term a(4) is at least 64. From an extrapolation of Dave Boll's numerical results a(4)~=66 and a(5)~=141 are estimated values for the next terms.
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LINKS
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Dave Boll, Packing spheres in cubes
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EXAMPLE
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a(3)=27 because there is no known better arrangement than the 3*3*3 cubic one that would allow to pack more than 27 spheres into a cube of edge length 3.
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CROSSREFS
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Cf. A084824, A084828, A084617.
Sequence in context: A000810 A129663 A112646 this_sequence A119522 A070494 A070493
Adjacent sequences: A084822 A084823 A084824 this_sequence A084826 A084827 A084828
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KEYWORD
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bref,hard,more,nonn
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AUTHOR
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Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 12 2003
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