Shown with a cast-on count of 12 stitches.  

• Row 1 (RS): P2, yo, k1, yo, k2tog, k2, k2tog, yo, k1, yo, p2 (14 sts).
• Row 2: P2, k1, p1, k1, p1, p3, k1, p1, k1, p2.
• Row 3: P2, yo, k1, k1, k2tog, yo, k2, yo, k2tog, k1, k1, yo, p2 (16 sts).
• Row 4: P2, k1, p3, k1, p2, k1, p3, k1, p2.
• Row 5: P2, yo, knit to last 2 sts, yo, p2 (18 sts).
• Rows 6, 8, 14, 16, 22, and 24: P2, k1, purl to last 3 sts, k1, p2.
• Row 7: P2, yo, knit to last 2 sts, yo, p2 (20 sts).
• Row 9: P2, yo, [k1, yo, k2tog, k2, k2tog, yo, k1] twice, yo, p2 (22 sts).
• Row 10: P2, k1, [p1, k1, p4, k1, p1] twice, k1, p2.
• Row 11: P2, yo, k1, [k1, k2tog, yo, k2, yo, k2tog, k1] twice, k1, yo, p2 (24 sts).
• Row 12: P2, k1, p1, [p2, k1, p2, k1, p2] twice, p1, k1, p2.
• Row 13: P2, yo, knit to last 2 sts, yo, p2 (26 sts).
• Row 15: P2, yo, knit to last 2 sts, yo, p2 (28 sts).
• Row 17: P2, yo, [k1, yo, k2tog, k2, k2tog, yo, k1] 3 times, yo, p2 (30 sts).
• Row 18: P2, k1, [p1, k1, p4, k1, p1] 3 times, k1, p2.
• Row 19: P2, yo, k1, [k1, k2tog, yo, k2, yo, k2tog, k1] 3 times, k1, yo, p2 (32 sts).
• Row 20: P2, k1, p1, [p2, k1, p2, k1, p2] 3 times, p1, k1, p2.
• Row 21: P2, yo, knit to last 2 sts, yo, p2 (34 sts).
• Row 23: P2, yo, knit to last 2 sts, yo, p2 (36 sts).