The first hundred million decimal places, computed here with the Chudnovsky series. Read them ten thousand at a time, jump to any position, or search the whole expansion for a string of digits.
Each digit is a direction. A 0 steps east, and each digit higher turns the step 36° further counter-clockwise. A pattern in the digits would pull the path one way. Instead it wanders like a random walk.
Bars start at zero; the small figure under each is its difference from exactly 10,000,000. An even spread like this is what you would expect if π is a normal number, though nobody has proved that it is.