The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A050803 Cubes expressible as the sum of two nonzero squares in at least one way. 16
 8, 125, 512, 1000, 2197, 4913, 5832, 8000, 15625, 17576, 24389, 32768, 39304, 50653, 64000, 68921, 91125, 125000, 140608, 148877, 195112, 226981, 274625, 314432, 373248, 389017, 405224, 512000, 551368, 614125, 704969, 729000, 912673, 941192 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Root values equal terms from sequence A000404 'Sum of 2 nonzero squares'. In other words, a(n)=(A000404(n))^3. - Artur Jasinski, Nov 29 2007 Obviously, if n and m are different members of this sequence, then n*m is also a member of this sequence. Additionally, if k^3 is a member of this sequence and k is not in A050804, then k^6 is also a member of this sequence. - Altug Alkan, May 11 2016 REFERENCES Ian Stewart, "Game, Set and Math", Chapter 8 'Close Encounters of the Fermat Kind', Penguin Books, Ed. 1991, pp. 107-124. LINKS EXAMPLE 551368 or 82^3 = 82^2 + 738^2 = 242^2 + 702^2. MATHEMATICA a[n_]:=Module[{c=0}, i=1; While[i^2 0 &] (* Michael De Vlieger, May 11 2016 *) CROSSREFS Cf. A000404, A050802, A050803, A135786, A135787, A135788. Sequence in context: A231638 A065082 A053058 * A016791 A061103 A264143 Adjacent sequences:  A050800 A050801 A050802 * A050804 A050805 A050806 KEYWORD nonn AUTHOR Patrick De Geest, Sep 15 1999 EXTENSIONS Edited by N. J. A. Sloane, May 15 2008 at the suggestion of R. J. Mathar STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 31 23:46 EDT 2021. Contains 346377 sequences. (Running on oeis4.)