A025405 Numbers that are the sum of 4 positive cubes in exactly 3 ways.

1225, 1521, 1582, 1584, 1738, 1764, 2009, 2249, 2366, 2415, 2422, 2457, 2459, 2485, 2520, 2539, 2753, 2763, 2790, 2799, 3008, 3094, 3185, 3187, 3213, 3248, 3276, 3392, 3456, 3458, 3465, 3572, 3582, 3600, 3607, 3626, 3656, 3717, 3736, 3753, 3815, 3941

Offset

1,1

References

Elena Deza and Michel Marie Deza, Figurate numbers, World Scientific Publishing (2012), page 307.

Links

Table of n, a(n) for n=1..42.

Formula

{k: A025457(k) = 3}. - R. J. Mathar, Jun 15 2018

Crossrefs

Cf. A025359, A025397, A025404, A025407, A343705, A343972, A344242.

Sequence in context: A377455 A184038 A025407 * A275256 A350323 A350345

Adjacent sequences: A025402 A025403 A025404 * A025406 A025407 A025408

Keyword

nonn

Author

David W. Wilson

Status

approved