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Search: id:A082721
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| A082721 |
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There exist no palindromic hexagonals of length n. |
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+0
2
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| 3, 8, 9, 12, 22, 24, 27, 30, 36, 38, 40
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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P. De Geest, Palindromic hexagonals
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CROSSREFS
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Cf. A034822, A059868, A059869, A059870, A082722, A034307.
Sequence in context: A087286 A165289 A066494 this_sequence A071677 A084747 A101065
Adjacent sequences: A082718 A082719 A082720 this_sequence A082722 A082723 A082724
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KEYWORD
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nonn,base,hard
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AUTHOR
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Patrick De Geest (pdg(AT)worldofnumbers.com), Apr 13 2003.
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