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A003327 Numbers that are the sum of 4 positive cubes in 1 or more way. 19
4, 11, 18, 25, 30, 32, 37, 44, 51, 56, 63, 67, 70, 74, 81, 82, 88, 89, 93, 100, 107, 108, 119, 126, 128, 130, 135, 137, 142, 144, 145, 149, 154, 156, 161, 163, 168, 180, 182, 187, 191, 193, 198, 200, 205, 206, 217, 219, 224, 226, 233, 240, 243, 245, 252, 254 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

It is conjectured that every number greater than 7373170279850 is in this sequence. [See the paper of the same name. - T. D. Noe, May 25 2017] - Charles R Greathouse IV, Jan 14 2017

LINKS

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

Jean-Marc Deshouillers, Fran├žois Hennecart, Bernard Landreau, 7373170279850, Math. Comp. 69 (2000), pp. 421-439. Appendix by I. Gusti Putu Purnaba.

Eric Weisstein's World of Mathematics, Cubic Number.

PROG

(PARI) list(lim)=my(v=List(), e=1+lim\1, x='x, t); t=sum(i=1, sqrtnint(e-4, 3), x^i^3, O(x^e))^4; for(n=4, lim, if(polcoeff(t, n)>0, listput(v, n))); Vec(v) \\ Charles R Greathouse IV, Jan 14 2017

CROSSREFS

Cf. A025403, A057905 (complement)

Sequence in context: A059771 A043409 A030610 * A025403 A047703 A242679

Adjacent sequences:  A003324 A003325 A003326 * A003328 A003329 A003330

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Eric W. Weisstein

STATUS

approved

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Last modified January 15 20:47 EST 2019. Contains 319184 sequences. (Running on oeis4.)