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Search: id:A032168
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| A032168 |
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Number of aperiodic necklaces of n beads of 2 colors, 10 of them black. |
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+0
2
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| 1, 5, 22, 70, 200, 497, 1144, 2424, 4862, 9225, 16796, 29372, 49742, 81686, 130750, 204248, 312455, 468611, 690690, 1001400, 1430715, 2015871, 2804880, 3856528, 5245125, 7060508, 9414328, 12440056, 16301164
(list; graph; listen)
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OFFSET
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11,2
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LINKS
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C. G. Bower, Transforms (2)
F. Ruskey, Necklaces, Lyndon words, De Bruijn sequences, etc.
Index entries for sequences related to Lyndon words
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FORMULA
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"CHK[ 10 ]" (necklace, identity, unlabeled, 10 parts) transform of 1, 1, 1, 1...
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CROSSREFS
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Sequence in context: A033445 A050533 A064836 this_sequence A000345 A011846 A058750
Adjacent sequences: A032165 A032166 A032167 this_sequence A032169 A032170 A032171
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KEYWORD
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nonn
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AUTHOR
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Christian G. Bower (bowerc(AT)usa.net)
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