You're right to be confused. The odd numbers are the knit rows.
I'd increase on the 7th, 13th, and 19th. It won't make a difference in the long run.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry