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A045612 Number of different energy states between two stacked necklaces, each of n positive and n negative charges. 1
1, 2, 5, 18, 71, 538 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

Index entries for sequences related to necklaces

CROSSREFS

Cf. A045611.

Sequence in context: A073157 A141494 A189843 * A103940 A162543 A039744

Adjacent sequences:  A045609 A045610 A045611 * A045613 A045614 A045615

KEYWORD

nonn

AUTHOR

Wouter Meeussen (wouter.meeussen(AT)pandora.be)

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Last modified February 14 08:58 EST 2012. Contains 205614 sequences.