Try to make all numbers 1-40 using the digits 2, 0, 2, 6. Rules: Use all four digits exactly once. Allowed operations: +,−,×,÷,! (factorial), $x^y$ (exponentiation), √ (square root). Parentheses and concatenation are allowed. (e.g. 20+2×6). Squaring uses the digit 2. The modulus operator is not allowed. Rounding is not allowed.
