A215889 Decimal expansion of cube root of 1729.

1, 2, 0, 0, 2, 3, 1, 4, 3, 6, 8, 4, 2, 7, 6, 8, 4, 3, 9, 6, 5, 8, 5, 5, 9, 6, 4, 2, 2, 7, 1, 0, 2, 4, 6, 2, 5, 3, 4, 1, 2, 1, 7, 5, 7, 9, 7, 8, 3, 2, 2, 8, 9, 4, 2, 3, 1, 8, 5, 2, 7, 9, 7, 7, 9, 4, 3, 1, 0, 5, 2, 3, 7, 9, 5, 3, 8, 3, 2, 9, 7, 1, 7, 7, 8, 6, 4, 9, 8, 2, 0, 3, 9, 5, 1, 7, 4, 4

Offset

2,2

Comments

1729 is the smallest number that is the sum of two positive cubes in more than one way, namely 1729 = 10^3 + 9^3 = 12^3 + 1^3.

Links

Chai Wah Wu, Table of n, a(n) for n = 2..10003

Elliot Wolf, Poem for Richard Feynman.

Example

1729^(1/3) = 12.002314368427684...

Mathematica

RealDigits[1729^(1/3), 10, 105][[1]]

Prog

(PARI) sqrtn(1729, 3) \\ Charles R Greathouse IV, Apr 16 2014

Crossrefs

Cf. A004564.

Sequence in context: A274575 A203994 A285725 * A195022 A146095 A230557

Adjacent sequences: A215886 A215887 A215888 * A215890 A215891 A215892

Keyword

nonn,easy,cons

Author

Alonso del Arte, Aug 25 2012

Status

approved