A very simple empirical neutrino mass formula
  A very simple empirical neutrino mass formula is found, implying the mass proportion $m_1 : m_2 : m_3 = 1 : 4 : 24(1-\beta^2)$. For the value $\beta = (5-1)(5-3)/5^2 = 8/25$ the formula predicts precisely $\Delta m^2_{21} \sim 8.0\times 10^{-5} {\rm eV}^2$ in consistency with the experiment, when the input of experimental estimate $\Delta m^2_{32} \sim 2.4\times 10^{-3} {\rm eV}^2$ is applied. Plausible interpretation of numerical elements building up this formula is briefly described. 
Wojciech Krolikowski (Warsaw University)