1,1

Table of n, a(n) for n=1..105.

Itai Benjamini, Ariel Yadin and Ofer Zeitouni, Maximal Arithmetic Progressions in Random Subsets, arXiv:0707.3888 [math.PR], 2007-2012.

Index entries for transcendental numbers

2/log(2) = 1/log(32) = 1/(5*log(2)). - Alonso del Arte, Feb 01 2015

2/log(2) = 1/arctanh(1/3). - Luc Rousseau, Sep 07 2020

2/log(2) = 2.885390081777926814719849362...

RealDigits[2/Log[2], 10, 128][[1]] (* Alonso del Arte, Feb 01 2015 *)

(PARI) 2/log(2) \\ Charles R Greathouse IV, Feb 02 2015

Cf. A002162.

Sequence in context: A198234 A197385 A010596 * A180308 A155739 A197139

Adjacent sequences: A131917 A131918 A131919 * A131921 A131922 A131923

cons,easy,nonn

Jonathan Vos Post, Jul 28 2007

approved