A130012 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A130012

Smallest natural number whose cube is the sum of n cubes of distinct natural numbers, or 0 if no such number exists.

2

1, 0, 6, 13, 9, 13, 14, 16, 18, 19, 21, 22, 24, 27, 28, 31, 33, 36, 38, 40, 42, 44, 45, 49, 52, 56, 58, 59, 62, 63, 67, 69, 71, 75, 79, 79, 83, 87, 89, 92, 95, 99, 102, 105, 107, 109, 114, 116, 117, 120, 126, 129, 131, 135, 138, 140, 145, 147, 150, 153, 158, 161, 165, 168

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

a(2)=0 is a special case of Fermat's Last Theorem. - Martin Fuller, Jul 06 2007

LINKS

Table of n, a(n) for n=1..64.

Larry Freeman's Blog Spot, Fermat's Last Theorem

EXAMPLE

a(3) = 6 because 3^3 + 4^3 + 5^3 = 6^3.

CROSSREFS

Cf. A130022 (for 4th powers), A007666 (for n-th powers).

Sequence in context: A363755 A070396 A359091 * A265740 A090324 A106623

Adjacent sequences: A130009 A130010 A130011 * A130013 A130014 A130015

KEYWORD

nonn

AUTHOR

J. Lowell, Jun 15 2007

EXTENSIONS

More terms from Martin Fuller, Jul 06 2007

STATUS

approved