def format_row(row_values):
    """
    Formats a row of data into enjin table format.

    :param row_values: a list of lists of values to be used as rows
    :return: a string corresponding to a row in enjin table format
    """
    gutter = row_values[0]
    if isinstance(row_values[0], int):
        gutter = str(row_values[0] + 1)

    row = '[tr][td]{0}[/td][/tr]'
    row_sep = '[/td][td]'

    return row.format(row_sep.join([gutter] + row_values[1:]))