A004875 - OEIS

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A004875

Numbers that are the sum of at most 2 nonzero 8th powers.

0, 1, 2, 256, 257, 512, 6561, 6562, 6817, 13122, 65536, 65537, 65792, 72097, 131072, 390625, 390626, 390881, 397186, 456161, 781250, 1679616, 1679617, 1679872, 1686177, 1745152, 2070241, 3359232, 5764801, 5764802, 5765057, 5771362, 5830337

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..10000

PROG

(PARI) list(lim)=my(v=List(), x8); for(x=0, sqrtnint(lim\=1, 8), x8=x^8; for(y=0, min(sqrtnint(lim-x8, 8), x), listput(v, x8+y^8))); Set(v) \\ Charles R Greathouse IV, Aug 22 2017

(PARI) T=thueinit('z^8+1, 1);

is(n)=#thue(T, n)>0 \\ Charles R Greathouse IV, Aug 23 2017

CROSSREFS

Sequence in context: A070782 A370965 A078167 * A067480 A062077 A190539

Adjacent sequences: A004872 A004873 A004874 * A004876 A004877 A004878

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved