A078130 Numbers having exactly one representation as sum of cubes>1.

8, 16, 24, 27, 32, 35, 40, 43, 48, 51, 54, 56, 59, 62, 67, 70, 75, 78, 81, 83, 86, 89, 94, 97, 102, 105, 108, 110, 113, 116, 121, 124, 125, 129, 132, 133, 135, 137, 140, 141, 143, 148, 149, 151, 156, 157, 159, 162, 164, 165, 167, 170, 173, 175, 178, 181, 183

Offset

1,1

Comments

A078128(a(n))=1.

Conjecture: the sequence is finite; is a(63)=218 the last entry?

Links

Table of n, a(n) for n=1..57.

Index entries for sequences related to sums of cubes

Eric Weisstein's World of Mathematics, Cubic Number.

Example

72 is not a term, as 72 = 8+8+8+8+8+8+8+8+8 = 8+64.

Crossrefs

Cf. A000578, A078131, A078129, A078136.

Sequence in context: A144591 A078131 A122612 * A062171 A048108 A228957

Adjacent sequences: A078127 A078128 A078129 * A078131 A078132 A078133

Keyword

nonn

Author

Reinhard Zumkeller, Nov 19 2002

Status

approved