Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_30057479_1 ( synthesis VARCHAR, output_power VARCHAR )

### Question ###
How many synthesis are there for 5~16.2 pw per cycle (calculated) output power?

### Accurate SQL ###

SELECT COUNT(synthesis) FROM table_30057479_1 WHERE output_power = "5~16.2 pW per cycle (calculated)"