A020841 Decimal expansion of 1/sqrt(84).

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

Offset

0,3

Links

Ivan Panchenko, Table of n, a(n) for n = 0..1000

Index entries for algebraic numbers, degree 2.

Formula

Equals 1/(2*A010477). - Stefano Spezia, Jan 19 2025

Mathematica

RealDigits[1/Sqrt[84], 10, 120][[1]] (* Harvey P. Dale, Nov 27 2013 *)

Prog

(PARI) 1/sqrt(84) \\ Charles R Greathouse IV, May 18 2026

Crossrefs

Cf. A010477.

Sequence in context: A379467 A064733 A324998 * A081801 A176522 A219732

Adjacent sequences: A020838 A020839 A020840 * A020842 A020843 A020844

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved