1,1
Table of n, a(n) for n=1..42.
{n: A025457(n) = 3}. - R. J. Mathar, Jun 15 2018
Cf. A025407 (3 or more ways), A025397 (3 positive cubes).
Sequence in context: A229371 A184038 A025407 * A275256 A183665 A250848
Adjacent sequences: A025402 A025403 A025404 * A025406 A025407 A025408
nonn
David W. Wilson
approved