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%I A003391 #17 Aug 04 2020 15:50:02
%S A003391 2,513,1024,19684,20195,39366,262145,262656,281827,524288,1953126,
%T A003391 1953637,1972808,2215269,3906250,10077697,10078208,10097379,10339840,
%U A003391 12030821,20155392,40353608,40354119,40373290,40615751,42306732,50431303,80707214,134217729,134218240,134237411
%N A003391 Numbers that are the sum of 2 positive 9th powers.
%H A003391 David A. Corneth, <a href="/A003391/b003391.txt">Table of n, a(n) for n = 1..10000</a>
%e A003391 From _David A. Corneth_, Aug 03 2020: (Start)
%e A003391 4605366718202103 is in the sequence as 4605366718202103 = 8^9 + 55^9.
%e A003391 66540479494556160 is in the sequence as 66540479494556160 = 16^9 + 74^9.
%e A003391 208226326986883072 is in the sequence as 208226326986883072 = 28^9 + 84^9. (End)
%Y A003391 Cf. A003380 (8th), A004802 (10th).
%Y A003391 Cf. A001017 (ninth powers).
%K A003391 nonn,easy
%O A003391 1,1
%A A003391 _N. J. A. Sloane_

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