Pattern Errata (per Kent):

Row 19: K4,(K,YO,K),K4,P2,(Sl 2-k1-p2sso),P2,K4,(K,YO,K),K4,CO 3 sts

Row 20: P1,K2,P11,K2,P1,K2,P11,CO 3 sts

Row 29: *K4, (K, YO, K), K4, P2, (Sl 2-k1-p2sso), P2 repeat from *

NOTE! you won't have enough stitches left on the needles to complete the last repeat, so after the second K4 just end by BO 3 sts

Just a note there are 2 mistakes in the pattern….
Row 19. Is missing “K4” after the first (K, YO, K)
Row 20. Ignore the “K2, P1” at the end. Those sts don’t exist yet. Instead, end with CO (cast on) 3 sts after the P11