def alphanumeric_table() -> dict[str, int]:
    """Dictionary with symbols for alphanumeric encoding

    Returns:
        dict[str, int]: A dictionary that contains data in the
        form (character: number)
    """
    table = {
        '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7,
        '8': 8, '9': 9, 'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14,
        'F': 15, 'G': 16, 'H': 17, 'I': 18, 'J': 19, 'K': 20, 'L': 21,
        'M': 22, 'N': 23, 'O': 24, 'P': 25, 'Q': 26, 'R': 27, 'S': 28,
        'T': 29, 'U': 30, 'V': 31, 'W': 32, 'X': 33, 'Y': 34, 'Z': 35,
        ' ': 36, '$': 37, '%': 38, '*': 39, '+': 40, '-': 41, '.': 42,
        '/': 43, ':': 44
    }

    return table