A085675 - OEIS

%I #7 Jun 24 2015 13:50:45

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

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

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

%N Decimal expansion of log(1 + log(1 + log(1 + log(1 + Pi)))).

%H J. Blanck, <a href="http://dx.doi.org/10.1007/3-540-45335-0_24">Exact real arithmetic systems: results of competition</a>, pp. 389-393 of J. Blanck et al., eds., Computability and Complexity in Analysis (CCA 2000), Lect. Notes Computer Science 2064/2001.

%t RealDigits[Log[1+Log[1+ Log[1+Log[1+Pi]]]],10,120][[1]] (* _Harvey P. Dale_, Jun 24 2015 *)

%o (PARI) log(1 + log(1 + log(1 + log(1 + Pi)))) \\ _Charles R Greathouse IV_, Apr 01 2014

%K cons,nonn

%O 0,1

%A _N. J. A. Sloane_, Jul 15 2003