A116643 Numbers representable as the sum of 3 sixth powers in more than one way.

160426514, 10267296896, 95200890914, 116950928706, 176277173474, 289824641354, 300620262890, 657107001344, 2506664281250, 6092857018496, 6963806813393, 7484859437184, 8427066928346, 10824753654794

Offset

1,1

Comments

308 terms (solutions) known.

Links

_Randy L. Ekl_, Mar 15 2008, Table of n, a(n) for n = 1..49

Example

a(1) = 23^6 + 15^6 + 10^6 = 22^6 + 19^6 + 3^6 = 160426514

Mathematica

Select[ Split[ Sort[ Flatten[ Table[x^6 + y^6 + z^6, {x, 1, 200}, {y, 1, x}, {z, 1, y}]]]], Length[#] > 1 & ][[All, 1]] (* Jean-François Alcover, Jul 26 2011 *)

Crossrefs

Cf. A132682.

Sequence in context: A365019 A151695 A343079 * A162839 A251473 A102337

Adjacent sequences: A116640 A116641 A116642 * A116644 A116645 A116646

Keyword

nonn

Author

Randy L. Ekl, Mar 15 2008

Status

approved