A374171 Decimal expansion of log(9/5).

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

Offset

0,1

Links

Table of n, a(n) for n=0..104.

Michael Ian Shamos, A catalog of the real numbers (2011), p. 519.

Index entries for transcendental numbers

Formula

Equals Sum_{k>=1} L(k)/(3^k*k), where L(k) is the k-th Lucas number [Shamos].

Equals Integral_{x=0..1} -(x^2-1)^2/log(x) dx.

Example

0.587786664902119008189731140618863769769379761376981181...

Mathematica

RealDigits[Log[9/5], 10, 105][[1]] (* Stefano Spezia, Jun 30 2024 *)

Prog

(PARI) log(9/5)

Crossrefs

Cf. A000032, A000204.

Sequence in context: A358361 A197415 A019845 * A357838 A143618 A177056

Adjacent sequences: A374168 A374169 A374170 * A374172 A374173 A374174

Keyword

nonn,cons

Author

Claude H. R. Dequatre, Jun 30 2024

Status

approved