A230719 Smallest number whose square is the sum of two positive cubes in at least n ways.

3, 77976, 3343221000

Offset

1,1

Comments

See A050801, A051302, A155961 for more comments, references, links, and crossrefs.

Links

Table of n, a(n) for n=1..3.

Index to sequences related to sums of cubes

Example

3^2 = 1^3 + 2^3.
77976^2 = 228^3 + 1824^3 = 1026^3 + 1710^3.
3343221000^2 = 279300^3 + 2234400^3 = 790020^3 + 2202480^3 = 1256850^3 + 2094750^3.

Crossrefs

a(1) = A050801(1), a(2) = A051302(1), a(3) = A155961(1).

Sequence in context: A178966 A368720 A175551 * A213000 A151594 A119119

Adjacent sequences: A230716 A230717 A230718 * A230720 A230721 A230722

Keyword

nonn,more

Author

Jonathan Sondow, Oct 28 2013

Status

approved