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A004833
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Numbers that are the sum of at most 4 nonzero 4-th powers.
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2
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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; internal format)
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OFFSET
| 1,3
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..1000
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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 */
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CROSSREFS
| Sequence in context: A113232 A095261 A066103 * A178683 A111191 A115891
Adjacent sequences: A004830 A004831 A004832 * A004834 A004835 A004836
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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