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Search: id:A006892
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| A006892 |
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Representation requires n squares with greedy algorithm.
(Formerly M0860)
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+0
4
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| 1, 2, 3, 7, 23, 167, 7223, 13053767, 42600227803223, 453694852221687377444001767, 51459754733114686962148583993443846186613037940783223
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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E. Lemoine, ``D\'{e}composition d'un nombre entier N en ses puissances ni\`{e}mes maxima,'' C. R. Acad. Sci. Paris, Vol. 95, pp. 719-722, 1882.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
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Sequence in context: A108176 A111235 A066356 this_sequence A102710 A048824 A099073
Adjacent sequences: A006889 A006890 A006891 this_sequence A006893 A006894 A006895
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KEYWORD
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nonn
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AUTHOR
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Jeffrey Shallit
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EXTENSIONS
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For n >= 4, a(n) = a(n-1) + (a(n-1)+1)^2/4 - Joe K. Crump (joecr(AT)carolina.rr.com), Apr 16 2000
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