Shown with a cast-on count of 12 stitches.  

• Row 31 (RS): P2, yo, ssk, p2, M1Lp, p2, yo, ssk, p2 (13 sts).
• Row 32: K2, p2, k2, p1, k2, p2, k2.
• Row 33: P2, k2tog, yo, p2, (p1, k1, p1) in next st, p2, k2tog, yo, p2 (15 sts).
• Row 34: K2, p2, k3, p1, k3, p2, knit.
• Row 35: P2, yo, ssk, p3, (p1, k1, p1) in next st, p3, yo, ssk, p2 (17 sts).
• Row 36: K2, p2, k4, p1, k4, p2, knit.
• Row 51: P2, k2tog, yo, p4, k1, yo, p4, k2tog, yo, p2 (18 sts).
• Row 52: K2, p2, [k4, p2] twice, k2.
• Row 131: P2, [yo, ssk, p2, M1Lp, p2] twice, yo, ssk, p2 (20 sts).
• Row 132: K2, p2, [k2, p1, k2, p2] twice, k2.
• Row 133: P2, [k2tog, yo, p2, (p1, k1, p1) in next st, p2] twice, k2tog, yo, p2 (24 sts).
• Row 134: K2, p2, [k3, p1, k3, p2] twice, knit.
• Row 135: P2, [yo, ssk, p3, (p1, k1, p1) in next st, p3] twice, yo, ssk, p2 (28 sts).
• Row 136: K2, p2, [k4, p1, k4, p2] twice, knit.
• Row 151: P2, [k2tog, yo, p4, k1, yo, p4] twice, k2tog, yo, p2 (30 sts).
• Row 152: K2, p2, [k4, p2] 4 times, k2.
• Row 231: P2, [yo, ssk, p2, M1Lp, p2] 4 times, yo, ssk, p2 (34 sts).
• Row 232: K2, p2, [k2, p1, k2, p2] 4 times, k2.
• Row 233: P2, [k2tog, yo, p2, (p1, k1, p1) in next st, p2] 4 times, k2tog, yo, p2 (42 sts).
• Row 234: K2, p2, [k3, p1, k3, p2] 4 times, knit.
• Row 235: P2, [yo, ssk, p3, (p1, k1, p1) in next st, p3] 4 times, yo, ssk, p2 (50 sts).
• Row 236: K2, p2, [k4, p1, k4, p2] 4 times, knit.
• Row 251: P2, [k2tog, yo, p4, k1, yo, p4] 4 times, k2tog, yo, p2 (54 sts).
• Row 252: K2, p2, [k4, p2] 8 times, k2.