Shown with a cast-on count of 17 stitches.  

• Row 1 (RS): K8, yo, k1, yo, k8 (19 sts).
• Rows 2, 4, 6, 8, 10, 12, 14, and 16: Purl.
• Row 3: K7, M1L, k2, yo, k1, yo, k2, M1L, k7 (23 sts).
• Row 5: K8, M1L, k2, yo, k3, yo, k2, M1L, k8 (27 sts).
• Row 7: K9, M1L, k2, yo, k1, yo, k3, yo, k1, yo, k2, M1L, k9 (33 sts).
• Row 9: K11, M1L, k2, yo, k1, yo, k2, M1L, k1, M1L, k2, yo, k1, yo, k2, M1L, k11 (41 sts).
• Row 11: K13, M1L, k2, yo, k1, yo, k2, M1L, k1, sl2-k1-p2sso, k1, M1L, k2, yo, k1, yo, k2, M1L, k13 (47 sts).
• Row 13: K15, M1L, k2, yo, k1, yo, k2, M1L, k2, sl2-k1-p2sso, k2, M1L, k2, yo, k1, yo, k2, M1L, k15 (53 sts).
• Row 15: K17, M1L, k2, yo, k1, yo, k2, M1L, k3, sl2-k1-p2sso, k3, M1L, k2, yo, k1, yo, k2, M1L, k17 (59 sts).