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Search: id:A011845
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A011845 Floor( binomial(n,8)/9 ); number of aperiodic necklaces (Lyndon words) with 9 black beads and n-9 white beads. +0
3
0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 5, 18, 55, 143, 333, 715, 1430, 2701, 4862, 8398, 13996, 22610, 35530, 54479, 81719, 120175, 173586, 246675, 345345, 476905, 650325, 876525, 1168700, 1542684, 2017356, 2615091 (list; graph; listen)
OFFSET

0,11
LINKS

Index entries for sequences related to Lyndon words

CROSSREFS

Cf. A000031, A001037, A028723, A051168.

A column of triangle A011847.

Sequence in context: A127983 A056782 A081492 this_sequence A099450 A001793 A093374

Adjacent sequences: A011842 A011843 A011844 this_sequence A011846 A011847 A011848

KEYWORD

nonn

AUTHOR

njas

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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