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A045612
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Number of different energy states between two stacked necklaces, each of n positive and n negative charges.
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2
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1, 2, 5, 18, 71, 538, 2619, 33052, 233613, 3153926, 24581647
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OFFSET
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0,2
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COMMENTS
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For this sequence, only the distances between the two necklaces are taken into account (that is, distances within a necklace are ignored). - Sean A. Irvine, Mar 18 2021
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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