def calc_num_valid_seedpicker_checksums(num_first_words):
    """
    If you have K firstwords, you will have V valid checksum words to choose from
    This convenience method is used for displaying progress to the user.
    """
    return {
        11: 128,
        14: 64,
        17: 32,
        20: 16,
        23: 8,
    }[num_first_words]