A010611 Decimal expansion of cube root of 40.

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

Offset

1,1

Comments

Equals sqrt(2*sqrt(10*sqrt(2*sqrt(10*sqrt(2*sqrt(10)...))))). - Zak Seidov, Dec 19 2009

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

Example

3.41995189335339397870621774508772021973611022108610984876572341488859184100...

Mathematica

RealDigits[N[40^(1/3), 200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 17 2012 *)
RealDigits[Surd[40, 3], 10, 120][[1]] (* Harvey P. Dale, Jun 18 2021 *)

Prog

(PARI) sqrtn(40, 3) \\ Charles R Greathouse IV, Apr 14 2014

Crossrefs

Cf. A010269 (continued fraction).

Sequence in context: A378227 A198739 A158076 * A136158 A164948 A102051

Adjacent sequences: A010608 A010609 A010610 * A010612 A010613 A010614

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved