A011101 Decimal expansion of 5th root of 16.

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

Offset

1,2

Links

Ivan Panchenko, Table of n, a(n) for n = 1..1000

Formula

Equals Product_{k>=0} (1 + (-1)^k/(5*k + 1)). - Amiram Eldar, Jul 25 2020

Example

1.741101126592248...

Mathematica

RealDigits[16^(1/5), 10, 128][[1]] (* Alonso del Arte, Jan 03 2015 *)

Prog

(PARI) sqrtn(16, 5) \\ Charles R Greathouse IV, Apr 16 2014

Crossrefs

Sequence in context: A294514 A099935 A082665 * A021935 A131028 A225463

Adjacent sequences: A011098 A011099 A011100 * A011102 A011103 A011104

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved