The Unrepeatable Function The unrepeatable function is NRF (P) = { 3 ^ (a - 1) + 3 ^ (a - 2) x 2 ^ r (1) + 3 ^ (a - 3) x 2 ^ r (1) x 2 ^ r (2) + ..... + + ..... + + } / { - 3 ^ a } where a is an integer for the munber of 3 X + 1 advance operations, ...