%I #17 Aug 04 2020 15:50:02

%S 2,513,1024,19684,20195,39366,262145,262656,281827,524288,1953126,

%T 1953637,1972808,2215269,3906250,10077697,10078208,10097379,10339840,

%U 12030821,20155392,40353608,40354119,40373290,40615751,42306732,50431303,80707214,134217729,134218240,134237411

%N Numbers that are the sum of 2 positive 9th powers.

%H David A. Corneth, <a href="/A003391/b003391.txt">Table of n, a(n) for n = 1..10000</a>

%e From _David A. Corneth_, Aug 03 2020: (Start)

%e 4605366718202103 is in the sequence as 4605366718202103 = 8^9 + 55^9.

%e 66540479494556160 is in the sequence as 66540479494556160 = 16^9 + 74^9.

%e 208226326986883072 is in the sequence as 208226326986883072 = 28^9 + 84^9. (End)

%Y Cf. A003380 (8th), A004802 (10th).

%Y Cf. A001017 (ninth powers).

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_