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A032294 Number of aperiodic bracelets (turn over necklaces) with n beads of 3 colors. 0
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; refs; listen; history; internal format)
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 * A146034 A032029 A058492

Adjacent sequences:  A032291 A032292 A032293 * A032295 A032296 A032297

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 18:54 EST 2012. Contains 205939 sequences.