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A004833 Numbers that are the sum of at most 4 nonzero 4th powers. 2
0, 1, 2, 3, 4, 16, 17, 18, 19, 32, 33, 34, 48, 49, 64, 81, 82, 83, 84, 97, 98, 99, 113, 114, 129, 162, 163, 164, 178, 179, 194, 243, 244, 256, 257, 258, 259, 272, 273, 274, 288, 289, 304, 324, 337, 338, 339, 353, 354, 369, 418, 419, 434, 499, 512, 513, 514, 528, 529, 544, 593, 594, 609, 625, 626, 627, 628, 641, 642, 643 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

MATHEMATICA

Reap[For[n = 0, n < 1000, n++, If[MatchQ[ PowersRepresentations[n, 4, 4], {{_, _, _, _}, ___}], Print[n]; Sow[n]]]][[2, 1]] (* Jean-Fran├žois Alcover, Oct 30 2017 *)

PROG

(PARI) N=1000; x='x+O('x^N); /* terms up to N-1 */

S=ceil(N^(1/4));

v=Vec(sum(k=-S, S, x^(k^4))^4);

for(n=1, #v, if(v[n]!=0, print1(n-1, ", "))); /* Joerg Arndt, Jun 25 2011 */

CROSSREFS

Sequence in context: A095261 A066103 A237341 * A283515 A229546 A300855

Adjacent sequences:  A004830 A004831 A004832 * A004834 A004835 A004836

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified October 20 20:24 EDT 2019. Contains 328273 sequences. (Running on oeis4.)