1,1

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

Eric Weisstein's World of Mathematics, Arithmetic-Geometric Mean

2.47468043623630446260665960359140148925167409406673586682618274063...

(PARI) agm(2, 3) \\ Charles R Greathouse IV, Oct 18 2011

Sequence in context: A114375 A198503 A129200 * A222407 A230724 A167280

Adjacent sequences: A074955 A074956 A074957 * A074959 A074960 A074961

nonn,cons

Zak Seidov, Oct 05 2002

approved