You're right the indicator is not in RE. I couldn't find any samples of this indicator either, but I think that's because it's not so much a "formula" as it is a bar pattern. It looks like it should be pretty easy to implement.
Fractal Technical Indicator it is a series of at least five successive bars, with the highest HIGH in the middle, and two lower HIGHs on both sides. The reversing set is a series of at least five successive bars, with the lowest LOW in the middle, and two higher LOWs on both sides, which correlates to the sell fractal. The fractals are have High and Low values and are indicated with the up and down arrows.
Here is another reference:http://www.linnsoft.com/tour/techind/fractals.htm
The Investor/RT Fractal indicator is based upon the "Bill Williams Fractal" in the book "Trading Chaos" by Bill Williams, PhD. A fractal is an entry technique that is traditionally defined as "a bar that has two preceding and two following bars with lower highs (or lower lows, on a down move)".