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Numbers that are the sum of at most 3 nonzero 8th powers.
1

%I #11 Sep 16 2016 17:20:19

%S 0,1,2,3,256,257,258,512,513,768,6561,6562,6563,6817,6818,7073,13122,

%T 13123,13378,19683,65536,65537,65538,65792,65793,66048,72097,72098,

%U 72353,78658,131072,131073,131328,137633,196608,390625,390626,390627,390881

%N Numbers that are the sum of at most 3 nonzero 8th powers.

%H Alois P. Heinz, <a href="/A004876/b004876.txt">Table of n, a(n) for n = 1..10000</a>

%K nonn

%O 1,3

%A _N. J. A. Sloane_