1,1

A078128(a(n))=1.

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

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.

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

Cf. A000578, A078131, A078129, A078136.

Sequence in context: A144591 A078131 A122612 * A062171 A048108 A228957

Adjacent sequences: A078127 A078128 A078129 * A078131 A078132 A078133

nonn

Reinhard Zumkeller, Nov 19 2002

approved