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

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Examples

			1.741101126592248...
		

Links

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

Programs

Mathematica

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

PARI

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

Formula

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