The title pretty much references what I'm asking... is there a Pentatonic scale for the uke? If so, can anyone post a format of it?
The short answer is "no". Pentatonic scales exist to be played on
any instrument. They are exactly the same notes, whether played on a uke, guitar, bagpipe, sousaphone or sung.
For instance, the pentatonic scale of C is the notes C D E G A. Some people call this the major pentatonic. To play this simply in open position on the uke, play:
Open 3rd string
2nd fret 3rd string
Open 2nd string
3rd fret 2nd string
Open 1st string
Pentatonic scales all follow this same format: start on any note, up 2 frets (half steps), up 2 frets (half steps), up 3 frets (half steps) up 2 frets (half steps). Playing it smoothly though, would mean using several string not just one. In other words, play the same notes on a different string so that your hand moves less. This means that you can play it smoothly.
There is a bit more to it, but these are the basics.