A191502 - OEIS

%I #10 Mar 07 2013 09:04:46

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

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

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

%N AGM(1,Pi).

%C AGM is the arithmetic-geometric mean.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Arithmetic-GeometricMean.html">Arithmetic-Geometric Mean</a>

%e 1.918724665977634529660378250749815...

%t RealDigits[ ArithmeticGeometricMean[1, Pi], 10, 120] // First (* _Jean-François Alcover_, Mar 07 2013 *)

%o (PARI) agm(1,Pi)

%Y Cf. A191220

%K nonn,cons

%O 1,2

%A _Franklin T. Adams-Watters_, Jun 03 2011