OFFSET
1,2
REFERENCES
G. H. Hardy and E. M. Wright, An Introduction to the Theory of Numbers, 5th ed., Oxford Univ. Press, 1979, equation 21.11.2
David Wells, The Penguin Dictionary of Curious and Interesting Numbers, Penguin Books, NY, 1986, p. 164.
EXAMPLE
Rows: (1), (3, 4), (3, 4, 5), (30, 120, 272, 315), (19, 43, 46, 47, 67), ...
CROSSREFS
KEYWORD
AUTHOR
Frank Ellermann, May 26 2001
EXTENSIONS
Corrected by Vladeta Jovovic, May 29 2001
A few particular solutions are known for k = 4: 651^4 = 240^4 + 340^4 + 430^4 + 599^4, 5281^4 = 1000^4 + 1120^4 + 3233^4 + 5080^4, 7703^4 = 2230^4 + 3196^4 + 5620^4 + 6995^4, ... The smallest one is 353^4 = 30^4 + 120^4 + 272^4 + 315^4.
STATUS
approved