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Search: id:A127405
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| A127405 |
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Number of points in a 2-dimensional honeycomb net covered by a circular disk of diameter n if the center of the disk is chosen to minimize the number of net points covered by the disk. |
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+0
7
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| 0, 2, 4, 8, 12, 20, 24, 36, 46, 56, 68, 81, 96, 116, 130, 150, 168, 190, 204, 236
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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a(n)<= min(A127402(n),A127403(n),A127404(n)).
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LINKS
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Hugo Pfoertner, Minimal number of points in the honeycomb lattice covered by circular disks. Illustrations.
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CROSSREFS
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Cf. A127402, A127403, A127404, A127406. The corresponding sequences for the square lattice and hexagonal lattice are A123689 and A125851, respectively.
Sequence in context: A117455 A110571 A049696 this_sequence A136034 A059793 A118029
Adjacent sequences: A127402 A127403 A127404 this_sequence A127406 A127407 A127408
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KEYWORD
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more,nonn
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AUTHOR
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Hugo Pfoertner (hugo(AT)pfoertner.org), Feb 08 2007
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