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Search: id:A035305
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| A035305 |
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Minimum sum of n numbers, any n-1 of which sum to a square. |
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+0
1
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| 5, 55, 122, 633, 911, 2210, 3156, 4908, 8656, 13018, 17426, 25968, 33135, 45374, 57128, 74543, 93673, 116973, 144454, 175564, 207031, 258150, 304708, 362466, 416117, 490029, 562590, 660993, 756963
(list; graph; listen)
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OFFSET
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2,1
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LINKS
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Haikin Fedor, Table for partition problem (1998)
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EXAMPLE
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a(2)=5 because 5=1+4 and both 1 and 4 are squares; a(3)=55 because 55=6+19+30 and all three of 25=6+19, 36=6+30 and 49=19+30 are squares
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CROSSREFS
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Sequence in context: A085719 A129420 A015221 this_sequence A057722 A078216 A014700
Adjacent sequences: A035302 A035303 A035304 this_sequence A035306 A035307 A035308
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KEYWORD
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nonn,nice
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AUTHOR
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Erich Friedman (erich.friedman(AT)stetson.edu), S. R. Finch (Steven.Finch(AT)inria.fr)
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EXTENSIONS
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Link edited by N. J. A. Sloane (njas(AT)research.att.com), Jan 26 2009 at the suggestion of S. R. Finch.
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