def _format_servers_list_power_state(state):
    """Return a formatted string of a server's power state

    :param state: the power state number of a server
    :rtype: a string mapped to the power state number
    """
    power_states = ['NOSTATE', 'Running', '', 'Paused', 'Shutdown', '',
        'Crashed', 'Suspended']
    try:
        return power_states[state]
    except Exception:
        return 'N/A'
