Enter the digits you are allowed to use in the square number (e.g., 1234567), and specify which of these digits can be repeated (if any). Also, enter how many digits long the square number should be.
Note: If you leave the "Repeatable Digits" field blank, the program will assume that each allowed digit can be used only once in the square number. That means every digit you enter must appear exactly once, and no digit will repeat.
Note: A maximum of 100 valid square numbers will be displayed for performance reasons.