%I A057720
%S A057720 2,0,6,7,6,8
%N A057720 Decimal expansion of muon-to-electron mass ratio.
%H A057720 D. E. Groom et al., <a href="http://pdg.lbl.gov/2000/lxxx.html">LEPTONS</
               a>
%F A057720 (muon mass)^26 approx = (tauon mass)^17 * (electron mass)^9.
%Y A057720 Cf. A005601, A006833, A006834.
%Y A057720 Sequence in context: A053206 A106848 A059444 this_sequence A087996 A086777 
               A058498
%Y A057720 Adjacent sequences: A057717 A057718 A057719 this_sequence A057721 A057722 
               A057723
%K A057720 cons,hard,nonn
%O A057720 0,1
%A A057720 Naohiro Nomoto (6284968128(AT)geocities.co.jp), Oct 26 2000