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A023042 Numbers w such that w^3 = x^3+y^3+z^3, x>y>z>=0, is soluble. +0
2
6, 9, 12, 18, 19, 20, 24, 25, 27, 28, 29, 30, 36, 38, 40, 41, 42, 44, 45, 46, 48, 50, 53, 54, 56, 57, 58, 60, 63, 66, 67, 69, 70, 71, 72, 75, 76, 78, 80, 81, 82, 84, 85, 87, 88, 89, 90, 92, 93, 95, 96, 97, 99, 100, 102, 103, 105, 106, 108, 110, 111, 112, 113, 114, 115, 116, 117 (list; graph; listen)
OFFSET

1,1

COMMENT

Numbers whose cube is the sum of three nonnegative cubes.

REFERENCES

Ya. I. Perelman, Algebra can be fun, pp. 142-143.

EXAMPLE

20 belongs to the sequence as 20^3 = 7^3 + 14^3 + 17^3.

CROSSREFS

Cf. A001235, A114923.

Sequence in context: A020938 A136360 A023483 this_sequence A128245 A117714 A114554

Adjacent sequences: A023039 A023040 A023041 this_sequence A023043 A023044 A023045

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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