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A023051
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Numbers that are the sum of two positive cubes in at least four ways (all solutions).
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4
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6963472309248, 12625136269928, 21131226514944, 26059452841000, 55707778473984, 74213505639000, 95773976104625, 101001090159424, 159380205560856, 169049812119552, 174396242861568, 188013752349696
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| R. K. Guy, Unsolved Problems in Number Theory, D1.
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LINKS
| Uwe Hollerbach, Table of n, a(n) for n=1..16939
D. W. Wilson, The Fifth Taxicab Number is 48988659276962496, J. Integer Sequences, Vol. 2, 1999, #99.1.9.
Uwe Hollerbach, Taxi, Taxi!
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CROSSREFS
| Cf. A023050, A011541, A003826, A001235.
Sequence in context: A173710 A204349 A094910 * A003826 A127344 A186179
Adjacent sequences: A023048 A023049 A023050 * A023052 A023053 A023054
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KEYWORD
| nonn
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AUTHOR
| David W. Wilson (davidwwilson(AT)comcast.net) (revised Oct 15, 1997)
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EXTENSIONS
| b-file extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jan 19 2009
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