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A020895 Cubefree sums of two nonzero cubes. 4
2, 7, 9, 19, 26, 28, 35, 37, 61, 63, 65, 91, 98, 117, 124, 126, 127, 133, 169, 215, 217, 218, 271, 279, 316, 331, 335, 341, 342, 370, 386, 387, 397, 407, 468, 469, 485, 511, 539, 547, 559, 602, 604, 631, 637, 657, 665, 721, 730, 737, 793, 817 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Jean-François Alcover, Table of n, a(n) for n = 1..501

Steven R. Finch, On a Generalized Fermat-Wiles Equation [broken link]

Steven R. Finch, On a Generalized Fermat-Wiles Equation [From the Wayback Machine]

MATHEMATICA

Reap[Do[If[Max[FactorInteger[n][[All, 2]] ] < 3, If[Reduce[a != 0 && b != 0 && n == a^3 + b^3, {a, b}, Integers] =!= False, Print[n]; Sow[n]]], {n, 2, 1000}]] [[2, 1]] (* Jean-François Alcover, Sep 07 2015 *)

CROSSREFS

Sequence in context: A177737 A293645 A293646 * A174247 A321322 A065139

Adjacent sequences:  A020892 A020893 A020894 * A020896 A020897 A020898

KEYWORD

nonn

AUTHOR

Steven Finch

EXTENSIONS

Set offset to 1, Joerg Arndt, Sep 07 2015

STATUS

approved

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Last modified October 22 14:44 EDT 2019. Contains 328318 sequences. (Running on oeis4.)