A number theoretical observation about the degeneracy of the genetic   code
  We discuss the similarity of the degeneration structure of the genetic code with a pure number theoretic -- ``divisors code.'' The most interesting thing about our observation is not that there is a connection between number theory and the genetic code, but the simplicity of the rule. We hope that the observation and the naive model presented in this paper will serve for ideas to other models of the degeneracy of the genetic code. Maybe, the ideas of this article can also be used in the area of artificial life to syntesize artificial genetic codes. 
Andrei Khrennikov and Marcus Nilsson