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Numbers that are the sum of a positive square and a positive fourth power in more than one way.
1

%I #9 Jun 17 2023 10:01:38

%S 17,65,82,97,145,257,272,305,337,377,442,481,545,626,641,706,785,881,

%T 1025,1040,1105,1297,1312,1345,1377,1525,1552,1780,1850,1921,1937,

%U 2225,2320,2385,2402,2417,2465,2482,2501,2657,2977,3026,3505,3697,3737,3845,4097,4100,4105,4112,4177,4225,4321

%N Numbers that are the sum of a positive square and a positive fourth power in more than one way.

%C Numbers k such that A363711(k) > 1.

%e a(1) = 17 = 1^2 + 2^4 = 4^2 + 1^4.

%Y Cf. A111925, A363711.

%K nonn

%O 1,1

%A _Seiichi Manyama_, Jun 17 2023