Broken rib or Mistake Rib, I’ve seen this stitch called both. It’s a favorite of mine. I use it in lots of scarves and hats. This is a bulky weight yarn and will be a nice warm scarf.
Work this pattern over an odd number of stitches divisible by 4 plus 1. K2, P2, and end with K1.
Hope this inspires you to knit some nice warm scarves for the upcoming cold weather! Maybe at least one to donate to one of the many organizations that give them to those in need.