A039664 Numbers k such that k^4 can be written as a sum of four positive 4th powers with no common factor.
353, 651, 2487, 2501, 2829, 3723, 3973, 4267, 4333, 4449, 4949, 5281, 5463, 5491, 5543, 5729, 6167, 6609, 6801, 7101, 7209, 7339, 7703, 8373, 8433, 8493, 8517, 8577, 8637, 9137, 9243, 9431, 9519, 9639, 9797, 9877, 10419, 10939, 11681, 11757
Offset: 1
Keywords
Links
- T. D. Noe, Table of n, a(n) for n = 1..1003 (from Wroblewski, with duplicate n removed)
- L. J. Lander, T. R. Parkin and J. L. Selfridge, A survey of equal sums of like powers, Math. Comp. vol. 21 no. 99, 1967, pp. 446-459, Table 1.
- Eric Weisstein's World of Mathematics, Diophantine Equation - 4th powers
- Jaroslaw Wroblewski, Exhaustive list of 1009 solutions to (4,1,4) below 222,000
Extensions
Edited by Don Reble, Jul 07 2007
Qualifier "positive" added to the name by Jianing Song, Jan 24 2020