What is the name of the episode of "My Three Sons" where Robbie Douglas does a dance called "The Frog"? The song was sung by The Rivingtons. Can this song be found anywhere?

The song "The Frog" is featured in Episode 160, a Series 5 episode titled "First, You're A Tadpole" which was Directed by James V. Kern. The song was written by series star Don Grady (Robbie) and Gary Abrams. Coinicdentally, both also penned the teleplay of the episode made in 1964.
I don't know for certain if the Rivingtons (who sing it) made a formal recording or if was done just for the show.

That episode recently aired. Great song.