OFFSET
1,3
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
FORMULA
a(n) << n^(5/2). Can this be improved?
EXAMPLE
31 = 2^5 - 1^5, 32 = 2^5 + 0^5, 33 = 2^5 + 1^5.
MATHEMATICA
Union[Flatten[{Total[#], Abs[#[[2]]-#[[1]]]}&/@Tuples[Range[0, 10]^5, 2]]] (* Harvey P. Dale, Mar 30 2015 *)
PROG
(PARI) T=thueinit('z^5+1);
is(n)=n==0 || #thue(T, n)>0
CROSSREFS
KEYWORD
nonn
AUTHOR
Charles R Greathouse IV, Nov 29 2014
STATUS
approved