In roulette, a wheel with 38 numbers is spun. Of these, 18 are red, 18 are black and two other numbers, 0 and 00, are neither red nor black. The probability when the wheel is spun it lands on any particular number is 1/38.
What is the probability that the wheel lands on one of the first 3 numbers on one spin, but does not land on any of them on the next spin?