Shown with a cast-on count of 8 stitches.  

• Row 1 (RS): K5, yo, k1, yo, k2 (10 sts).
• Row 2: P6, (p1, k1) in next st, k3 (11 sts).
• Row 3: K4, p1, k2, yo, k1, yo, k3 (13 sts).
• Row 4: P8, (p1, k1) in next st, k4 (14 sts).
• Row 5: K4, p2, k3, yo, k1, yo, k4 (16 sts).
• Row 6: P10, (p1, k1) in next st, k5 (17 sts).
• Row 7: K4, p3, k4, yo, k1, yo, k5 (19 sts).
• Row 8: P12, (p1, k1) in next st, k6 (20 sts).
• Row 9: K4, p4, ssk, k7, k2tog, k1 (18 sts).
• Row 10: P10, (p1, k1) in next st, k7 (19 sts).
• Row 11: K4, p5, ssk, k5, k2tog, k1 (17 sts).
• Row 12: P8, (p1, k1) in next st, k2, p1, k5 (18 sts).
• Row 13: K4, p1, k1, p4, ssk, k3, k2tog, k1 (16 sts).
• Row 14: P6, (p1, k1) in next st, k3, p1, k5 (17 sts).
• Row 15: K4, p1, k1, p5, ssk, k1, k2tog, k1 (15 sts).
• Row 16: P4, (p1, k1) in next st, k4, p1, k5 (16 sts).
• Row 17: K4, p1, k1, p6, k3tog, k1 (14 sts).
• Row 18: BO 6 sts, p3, k4 (8 sts).