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A342897
Smallest number that is the sum of three positive n-th powers in four ways.
1
129, 13896, 5978882
OFFSET
2,1
LINKS
R. Alter, Computations and generalizations on a remark of Ramanujan, pp. 182-196 of "Analytic Number Theory (Philadelphia, 1980)", ed. M. I. Knopp, Lect. Notes Math., Vol. 899, 1981.
EXAMPLE
a(2) = 129 = 1+64+64 = 4+4+121 = 16+49+64 = 4+25+100.
CROSSREFS
KEYWORD
nonn,bref,more
AUTHOR
N. J. A. Sloane, Apr 04 2021
STATUS
approved