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A250715
Numbers of the form 7^x + y^7 with x, y >= 0
2
1, 2, 7, 8, 49, 50, 129, 135, 177, 343, 344, 471, 2188, 2194, 2236, 2401, 2402, 2529, 2530, 4588, 16385, 16391, 16433, 16727, 16807, 16808, 16935, 18785, 18994, 33191, 78126, 78132, 78174, 78468, 80526, 94932, 117649, 117650, 117777, 119836, 134033, 195774
OFFSET
1,2
EXAMPLE
50 is in this sequence because 7^2+1^7 = 50.
344 is in this sequence because 7^3+1^7 = 344.
MATHEMATICA
nn=100; Union[Select[Flatten[Table[7^x + y^7, {x, 0, nn}, {y, 0, nn}]], #<=nn^7 &]]
CROSSREFS
Cf. similar sequences listed in A250482.
Sequence in context: A093795 A001493 A000637 * A198322 A372422 A371331
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Nov 27 2014
STATUS
approved