A printed table of random numbers, usually made up of several rows and columns of computer-generated numbers. To use the table a starting value is chosen by randomly selecting a row and column (e.g., by throwing a dice). Successive numbers are then chosen by working through the table using any previously chosen systematic rule. Suitable rules might be (1) moving horizontally to the right, skipping alternate numbers, or (2) moving vertically down, selecting every fifth number. The selected random numbers may then be used, for example, to determine target sequences.