Hi Let me introduce my Three Outside Down automatic finding script. This is a three candlestick bearish reversal pattern consisting of a bearish engulfing pattern formed by the first two candlesticks then followed by a down candlestick with a lower close than the prior candlestick.
HP, i think outside bars are different from engulfing candles as in the former case, the second candle should completely engulf both body and tail and should close above/below high /low.