OFFSET
0,1
COMMENTS
LINKS
Zhi-Wei Sun, Table of n, a(n) for n = 0..10000
EXAMPLE
a(0) = 6 since 0 + 6^4 = 28^2 + 8^3.
a(2) = 69 since 2 + 69^4 = 44^2 + 283^3.
a(5) = 46 since 5 + 46^4 = 1742^2 + 113^3.
a(570) = 983 since 570 + 983^4 = 546596^2 + 8595^3.
a(8078) = 2255 since 8078 + 2255^4 = 1926054^2 + 28083^3.
MATHEMATICA
SQ[n_]:=SQ[n]=IntegerQ[Sqrt[n]]
Do[x=1; Label[bb]; Do[If[SQ[n+x^4-y^3], Print[n, " ", x]; Goto[aa]], {y, 1, (n+x^4-1)^(1/3)}]; x=x+1; Goto[bb]; Label[aa]; Continue, {n, 0, 60}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Zhi-Wei Sun, Dec 28 2015
STATUS
approved