Shown with a cast-on count of 20 stitches.  

• Row 1 (RS): K2, yo, k2, ssk, k4, k2tog, k2, yo, k1, yo, ssk, yo, ssk, yo, k1 (21 sts).
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, and 36: Purl.
• Row 3: K3, yo, k2, ssk, k2, k2tog, k2, yo, k3, yo, ssk, yo, ssk, yo, k1 (22 sts).
• Row 5: K2, yo, ssk, yo, k2, ssk, k2tog, k2, yo, k5, yo, ssk, yo, ssk, yo, k1 (23 sts).
• Row 7: K3, yo, ssk, yo, k2, ssk, k4, k2tog, k2, yo, k1, yo, ssk, yo, ssk, yo, k1 (24 sts).
• Row 9: K2, yo, ssk, yo, ssk, yo, k2, ssk, k2, k2tog, k2, yo, k3, yo, ssk, yo, ssk, yo, k1 (25 sts).
• Row 11: K3, yo, ssk, yo, ssk, yo, k2, ssk, k2tog, k2, yo, k5, yo, ssk, yo, ssk, yo, k1 (26 sts).
• Row 13: K2, yo, [ssk, yo] 3 times, k2, ssk, k4, k2tog, k2, yo, k1, yo, ssk, yo, ssk, yo, k1 (27 sts).
• Row 15: K3, yo, [ssk, yo] 3 times, k2, ssk, k2, k2tog, k2, yo, k3, yo, ssk, yo, ssk, yo, k1 (28 sts).
• Row 17: K4, yo, [ssk, yo] 3 times, k2, ssk, k2tog, k2, yo, k5, yo, ssk, yo, ssk, yo, k1 (29 sts).
• Row 19: K2tog, k2, yo, [k2tog, yo] 3 times, k1, yo, k2, ssk, k4, k2tog, k2, [yo, k2tog] 3 times (28 sts).
• Row 21: K3, [k2tog, yo] 3 times, k3, yo, k2, ssk, k2, k2tog, k2, [yo, k2tog] 3 times (27 sts).
• Row 23: K2, [k2tog, yo] 3 times, k5, yo, k2, ssk, k2tog, k2, [yo, k2tog] 3 times (26 sts).
• Row 25: K1, [k2tog, yo] 3 times, k1, yo, k2, ssk, k4, k2tog, k2, [yo, k2tog] 3 times (25 sts).
• Row 27: K2, [k2tog, yo] twice, k3, yo, k2, ssk, k2, k2tog, k2, [yo, k2tog] 3 times (24 sts).
• Row 29: K1, [k2tog, yo] twice, k5, yo, k2, ssk, k2tog, k2, [yo, k2tog] 3 times (23 sts).
• Row 31: K2, k2tog, yo, k1, yo, k2, ssk, k4, k2tog, k2, [yo, k2tog] 3 times (22 sts).
• Row 33: K1, k2tog, yo, k3, yo, k2, ssk, k2, k2tog, k2, [yo, k2tog] 3 times (21 sts).
• Row 35: K7, yo, k2, ssk, k2tog, k2, [yo, k2tog] 3 times (20 sts).