## June 2018 Fiendish Function

The Fiendish Function posed during June 2018 had the following sample guesses and replies:

- 1
- 3
- 2
- 5
- 3
- 9
- 4
- 62
- 5
- 24
- 10
- 4202

The rule was: "Multiply this number of twos together, reverse the order of the digits, then add one".

Suppose the guess was 11:

- Raise two to this power, giving 2048.
- Reverse the order of the digits, giving 8402.
- Add one, giving 8403.

So the result is 8403.

## Earlier answers

Here are the answers to the Fiendish Functions posted in earlier months: