Looks that this would do it..
edited
This will do much more than 30,000 terms, but when limited to 30,000 I get
30000: 4*0.7853898300641171 = 3.1415593202564684
Type: Posts; User: Zula
Looks that this would do it..
edited
This will do much more than 30,000 terms, but when limited to 30,000 I get
30000: 4*0.7853898300641171 = 3.1415593202564684
Sounds like you either need a program to find 30,000 prime numbers or a file with them stored. To start with.....nevermind, they are just odd, not prime?