Multiple of 20+2 means you can use any multiple of 20 stitches, depending on how wide you want your piece, and then add 2. So this afghan is using (20x3) +2. Whatever instructions you have for the 20 stitches- you repeat those instructions for stitches 21-40 and 41-60.
Mommy to two wonderful girls
"I don't have to conform to the vagaries of time and space, I'm a loony!" -Campbell Bain (David Tennant) 'Takin' Over the Asylum'
OTN: Cabled Sweater
, arm warmers, kids' clothes