** 6, 9, 18, 45, 60, 265. **

$ Sum of digits.

. Decimal point

Sqrt Square root.

and concatenation (of numbers only)

Sum up the total of ones and publish your answer.

Examples:

37=111/(1+1+1). Scores 6

48=((1+1+1)!)!! Scores 3

List your 6 formulas.

NB: The order of candidate numbers is not by the level of difficulty