A155960 Squares which can be expressed as the sum of two positive cubes in at least 3 ways.

11177126654841000000, 715336105909824000000, 8148125331379089000000

Offset: 1

Author

Ray Chandler, Jan 31 2009

Keywords

• nonn
• hard
• bref
• more

Examples

			a(1) = 279300^3 + 2234400^3 = 790020^3 + 2202480^3 = 1256850^3 + 2094750^3. - _Jean-François Alcover_, Jul 03 2017
		

Links

• 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]

Crossrefs

Cf. A051302, A155961.

Formula

a(n) = A155961(n)^2.