A175598 Numbers k such that k^4 = x^4 - y^4 - z^4.

95800, 217519, 414560, 2682440, 15365639, 18796760

Offset: 1

Author

Juri-Stepan Gerasimov, Jul 21 2010, Jul 24 2010

Keywords

• nonn
• more

Comments

The values of x are 422481, 20615673, ... (without repetition).

Examples

			a(1) = 95800 because 95800^4 = 422481^4 - 217519^4 - 414560^4.
a(2) = 217519 because 217519^4 = 422481^4 - 95800^4 - 414560^4.
		

Crossrefs

Cf. A003828, A175610.

Extensions

First 0 removed by Jinyuan Wang, Feb 20 2020