A181125 Difference of two positive 6th powers.

0, 63, 665, 728, 3367, 4032, 4095, 11529, 14896, 15561, 15624, 31031, 42560, 45927, 46592, 46655, 70993, 102024, 113553, 116920, 117585, 117648, 144495, 215488, 246519, 258048, 261415, 262080, 262143, 269297, 413792, 468559, 484785, 515816

Offset: 1

Author

T. D. Noe, Oct 06 2010

Keywords

• nonn

Comments

No term is a prime number.

Links

• T. D. Noe, Table of n, a(n) for n=1..1000

Crossrefs

Cf. A024352 (squares), A181123 (cubes), A147857 (4th powers), A181124-A181128 (5th to 9th powers).

Cf. A022522 (a subsequence, except its first term). - Mathew Englander, Jun 01 2014

Programs

Mathematica

nn=10^10; p=6; Union[Reap[Do[n=i^p-j^p; If[n<=nn, Sow[n]], {i,Ceiling[(nn/p)^(1/(p-1))]}, {j,i}]][[2,1]]]