|
|
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
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
LINKS
|
|
|
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.
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|