A020895 Cubefree sums of two nonzero cubes.

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

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: A361706 A293645 A293646 * A174247 A343963 A321322

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