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A032294 Number of aperiodic bracelets (turn over necklaces) with n beads of 3 colors. +0
1
3, 3, 7, 15, 36, 79, 195, 477, 1209, 3168, 8415, 22806, 62412, 172887, 481552, 1351485, 3808080, 10780653, 30615351, 87226932, 249144506, 713378655, 2046856563, 5884468110, 16946569332, 48883597728, 141217159239 (list; graph; listen)
OFFSET

1,1

LINKS

Index entries for sequences related to bracelets

C. G. Bower, Transforms (2)

F. Ruskey, Necklaces, Lyndon words, De Bruijn sequences, etc.

N. J. A. Sloane, Transforms

FORMULA

MOEBIUS transform of A027671.

CROSSREFS

Sequence in context: A030069 A004043 A104176 this_sequence A146034 A032029 A058492

Adjacent sequences: A032291 A032292 A032293 this_sequence A032295 A032296 A032297

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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