Let us use the first 3 digits of PI, i.e.

** 3,1,4 **to create numbers from 1 to 50, using only basic math. operators.

Not all the digits must be used, but none can be repeated.

Examples (out of this range):**
52= 13*4; 65=4^3+1; 84=14*3! **

Only few numbers cannot be achieved.

Please show your list.

So far 4 numbers were not resolved: 39,45,46,50.

For 2 of them I have a valid solution within the set of (**concatenation, +, -, *, -, ^, !, sqrt** ), in both solutions one of the **bolded** symbols is used twice.

In my list 2 numbers are still not covered.

So - we still have a challenge.