On Black-Hole Numbers of Iteration of Digital Biquadratic Power Sum in Senary, Novenary or Duodecimal System

There are different periodic and fixed points under the iteration of biquadratic sum of digits of positive integer in different carry systems. There are one fixed point, one 3-circle, one 9-circle and one 11-circle in senary; three fixed point, one 9-circle and one 22-circle in novenary; one fixed points, one 3-circle, one 8-circle and one 14-circle in duodecimal system.