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A023051 Numbers that are the sum of two positive cubes in at least four ways (all solutions). 4
6963472309248, 12625136269928, 21131226514944, 26059452841000, 55707778473984, 74213505639000, 95773976104625, 101001090159424, 159380205560856, 169049812119552, 174396242861568, 188013752349696 (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..16939

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.

CROSSREFS

Cf. A023050, A011541, A003826, A001235.

Sequence in context: A204349 A094910 A210588 * A003826 A127344 A186179

Adjacent sequences:  A023048 A023049 A023050 * A023052 A023053 A023054

KEYWORD

nonn

AUTHOR

David W. Wilson (revised Oct 15 1997)

EXTENSIONS

b-file extended by Ray Chandler, Jan 19 2009

STATUS

approved

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Last modified May 25 14:13 EDT 2017. Contains 287038 sequences.