I'm trying to proof a certain conjecture I invented myself for quite a long time now but in fact I have no idea how to do this.
The conjecture says:
For the function
exists no natural result exept form 1, 2 and 4.
I tried so hard to find an argument that proves this assumption but it didn't work so far. Has anybody an idea?
I would be really glad if there was somebody who could help me.