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A003826 Numbers that are the sum of two cubes in at least four ways (primitive solutions). 6
6963472309248, 12625136269928, 21131226514944, 26059452841000, 74213505639000, 95773976104625, 159380205560856, 174396242861568, 300656502205416, 376890885439488, 521932420691227, 573880096718136 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, D1.

LINKS

Uwe Hollerbach, Table of n, a(n) for n=1..664

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]

E. Rosenstiel et al., The Four Least Solutions ... , Instit.of Mathem. and Its Applic. Bull. Jul 27 (pp. 155-157) 1991,

Eric Weisstein's World of Mathematics, Cubic Number

Eric Weisstein's World of Mathematics, Diophantine Equation--3rd Powers

D. W. Wilson, The Fifth Taxicab Number is 48988659276962496, J. Integer Sequences, Vol. 2, 1999, #99.1.9.

CROSSREFS

Cf. A011541, A023050, A023051, A001235.

Sequence in context: A295353 A210588 A023051 * A127344 A186179 A058124

Adjacent sequences:  A003823 A003824 A003825 * A003827 A003828 A003829

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from David W. Wilson, Oct 15 1997

b-file extended by Ray Chandler, Jan 19 2009

STATUS

approved

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Last modified November 29 19:26 EST 2020. Contains 338769 sequences. (Running on oeis4.)