This is a math oddity that so far has always ended with the 4,2,1 loop How it works is every time it ends in an odd number it multiplies by 3 and adds 1 and every time it ends in an even number it divides by 2. (Note) I don't know if the engine breaks after certain #e+# like 1e+56.
Scientist and mathematicians have done every number up to 2^62(I think) Its a mathematical problem scientist and mathematicians say not to try ever if you pursue a math career.