The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A261572 Minimum k such that k^6 can be expressed as the sum of n positive 6th powers. 0

%I

%S 1141,251,54,39,18,17,16,14,4,10,11,12,9,10,7,6,8,8,9,10,10,7,5,8,8,9,

%T 9,10,7,3,8,8,9,9,10,7,5,8,8,9,9,10,7,4,8,8,9,9,10,7,4,8,8,9,9,10,7,2,

%U 8,8,9,9,10,7,5,8,8,9,9,10,7,4,8,8,9,9,10,7,4

%N Minimum k such that k^6 can be expressed as the sum of n positive 6th powers.

%C It is not known whether there exists a 6th power that can be expressed as the sum of 6 positive 6th powers.

%H Eric W. Weisstein, <a href="http://mathworld.wolfram.com/DiophantineEquation6thPowers.html">Diophantine Equation--6th Powers</a>

%e a(7) = 1141 because 1141^6 = 1077^6 + 894^6 + 702^6 + 474^6 + 402^6 + 234^6 + 74^6 and no integer smaller than 1141 can be expressed as the sum of 7 positive 6th powers.

%Y Cf. A252476, A252486.

%K nonn

%O 7,1

%A _Jon E. Schoenfield_, Aug 24 2015

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified February 25 21:00 EST 2020. Contains 332258 sequences. (Running on oeis4.)