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A023051
Numbers that are the sum of two positive cubes in at least four ways (all solutions).
9
6963472309248, 12625136269928, 21131226514944, 26059452841000, 55707778473984, 74213505639000, 95773976104625, 101001090159424, 159380205560856, 169049812119552, 174396242861568, 188013752349696
OFFSET
1,1
REFERENCES
R. K. Guy, Unsolved Problems in Number Theory, D1.
LINKS
Uwe Hollerbach, Taxi, Taxi! [Original link, broken]
Uwe Hollerbach, Taxi, Taxi! [Replacement link to Wayback Machine]
Uwe Hollerbach, Taxi! Taxi! [Cached copy from Wayback Machine, html version of top page only]
D. W. Wilson, The Fifth Taxicab Number is 48988659276962496, J. Integer Sequences, Vol. 2, 1999, #99.1.9.
KEYWORD
nonn
AUTHOR
David W. Wilson (revised Oct 15 1997)
EXTENSIONS
b-file extended by Ray Chandler, Jan 19 2009
STATUS
approved