Shown with a cast-on count of 6 stitches.  

• Row 1 (RS): P6.
• Row 2: Knit.
• Row 3: [(P1, k1, p1) in next st] 6 times (18 sts).
• Row 4: [K1, p1, k1] 6 times.
• Row 5: [P1, M1Lp, k1, M1Rp, p1] 6 times (30 sts).
• Row 6: [K2, p1, k2] 6 times.
• Row 11: [P2, k1, yo, p2] 6 times (36 sts).
• Row 12: [K2, p2, k2] 6 times.
• Row 31: P2, [yo, ssk, p2, yo, p2] 5 times, yo, ssk, p2 (41 sts).
• Row 32: K2, p2, [k2, p1, k2, p2] 5 times, k2.
• Row 33: P2, [k2tog, yo, p2, M1Lp, k1, M1Rp, p2] 5 times, k2tog, yo, p2 (51 sts).
• Row 34: K2, p2, [k3, p1, k3, p2] 5 times, knit.
• Row 35: P2, [yo, ssk, p3, M1Lp, k1, M1Rp, p3] 5 times, yo, ssk, p2 (61 sts).
• Row 36: K2, p2, [k4, p1, k4, p2] 5 times, knit.
• Row 41: P2, [k2tog, yo, p4, k1, p4] 5 times, k2tog, yo, p2.
• Rows 42 and 44: K2, p2, [k4, p1, k4, p2] 5 times, k2.
• Row 43: P2, [yo, ssk, p4, k1, p4] 5 times, yo, ssk, p2.
• Row 51: P2, [k2tog, yo, p4, k1, yo, p4] 5 times, k2tog, yo, p2 (66 sts).
• Rows 52, 62, and 64: K2, p2, [k4, p2] 10 times, k2.
• Row 61: P2, [yo, ssk, p4] 10 times, yo, ssk, p2.
• Row 63: P2, [k2tog, yo, p4] 10 times, k2tog, yo, p2.