Question: are the first 20 digits of pi?
Answer: 3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 ... PI/4 = 1/1 - 1/3 + 1/5 - 1/7 + ...