A152043 Numbers expressible as the difference of two nonnegative cubes.
0, 1, 7, 8, 19, 26, 27, 37, 56, 61, 63, 64, 91, 98, 117, 124, 125, 127, 152, 169, 189, 208, 215, 216, 217, 218, 271, 279, 296, 316, 331, 335, 342, 343, 386, 387, 397, 448, 469, 485, 488, 504, 511, 512, 513, 547, 602, 604, 631, 657, 665, 702, 721, 728, 729, 784
Offset: 1
Keywords
Examples
E.g. 7=2^3-1^3, 8=2^3-0^3, 296=8^3-6^3.
Links
- Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
Crossrefs
The Index to the OEIS lists many related sequences under "difference of two cubes". - N. J. A. Sloane, Dec 04 2008
Programs
-
PARI
T=thueinit('z^3+1); is(n)=n==0 || #select(v->v[1]<=0&&v[2]>=0, thue(T, n))>0 \\ Charles R Greathouse IV, Nov 29 2014
Extensions
Extended by Ray Chandler, Dec 04 2008
Comments