References

[1]

N.J.A.Sloane,Ed.,The On-Line Encyclopedia of Integer Sequences,
published electronically A165942.

[2]

N.J.A.Sloane,Ed.,The On-Line Encyclopedia of Integer Sequences,
published electronically A166024.

[3]

N.J.A.Sloane,Ed.,The On-Line Encyclopedia of Integer Sequences,
published electronically .

[4]

N.J.A.Sloane,Ed.,The On-Line Encyclopedia of Integer Sequences,
published electronically A166121.

[5]

N.J.A.Sloane,Ed.,The On-Line Encyclopedia of Integer Sequences,
published electronically. A166227.

[6]

N.J.A.Sloane,Ed.,The On-Line Encyclopedia of Integer Sequences,
published electronically. A166383.

[7]

R. Cowen and J. Kennedy, "Discovering Mathematics with Mathematica", Erudition Books, 2001.

[8]

Collatz Problem, MathWolrd,
http://mathworld.wolfram.com/CollatzProblem.html

: Curious Properties of Reiterated : Mathematica Programs