A181128 - OEIS

%I #3 Mar 30 2012 17:22:57

%S 0,511,19171,19682,242461,261632,262143,1690981,1933442,1952613,

%T 1953124,8124571,9815552,10058013,10077184,10077695,30275911,38400482,

%U 40091463,40333924,40353095,40353606,93864121,124140032,132264603,133955584

%N Difference of two positive 9th powers.

%C No term is a prime number.

%H T. D. Noe, <a href="/A181128/b181128.txt">Table of n, a(n) for n=1..1000</a>

%t nn=10^15; p=9; Union[Reap[Do[n=i^p-j^p; If[n<=nn, Sow[n]], {i,Ceiling[(nn/p)^(1/(p-1))]}, {j,i}]][[2,1]]]

%Y Cf. A024352 (squares), A181123 (cubes), A147857 (4th powers), A181124-A181127 (5th to 8th powers)

%K nonn

%O 1,2

%A _T. D. Noe_, Oct 06 2010