The formula suggests that, extending outward, each planet would be approximately twice as far from the Sun as the one before.
Wikipedia essentialy says it is no longer popular but is neither fully supported nor disproved.
The hypothesis correctly anticipated the orbits of Ceres (in the asteroid belt) and Uranus, but failed as a predictor of Neptune's orbit and has eventually been superseded as a theory of solar system formation.
Recent astronomical research suggests that planetary systems around some other stars may follow Titius–Bode-like laws.
It seems like we just don't have enough data to say for sure one way or the other. When will be able to to conclusively confirm or disprove Bode's law?