Gödel numbering

The following is a solved problem:

http://img72.imageshack.us/img72/8504/questionw.jpg


So, I don't understand how they got the 37 from...
We assign numbers to each symbols using the rules here. We get:



So when we place these as exponents of odd prime numbers we get:



The third term evaluates to 205, so why did they use 37?

I agree with you; the third exponent should be 205.

Thanks, maybe that's a typo.