0,1

This sequence is also the decimal expansion of the logarithm of the Gamma-function at 1/2. - Iaroslav V. Blagouchine, Mar 20 2015

G. C. Greubel, Table of n, a(n) for n = 0..5000

Equals A053510/2 = log(A002161) = A131659/4.

0.572364942924700087071713675676529355823...

evalf(log(Pi)/2);

RealDigits[Log[Pi]/2, 10, 120][[1]] (* Harvey P. Dale, May 31 2015 *)

(PARI) log(gamma(1/2)) \\ or \\ log(Pi)/2 \\ _G. C. Greubl_, Jan 16 2017

Sequence in context: A192040 A117759 A021640 * A154479 A153110 A099283

Adjacent sequences: A155965 A155966 A155967 * A155969 A155970 A155971

cons,easy,nonn

R. J. Mathar, Jan 31 2009

approved