Shown with a cast-on count of 3 stitches.  

• Row 1 (RS): K3.
• Row 2: [Kfb] 3 times (6 sts).
• Row 3: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (9 sts).
• Row 4: Sl1 wyif, k1, p2, knit.
• Row 5: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (12 sts).
• Row 6: Sl1 wyif, k2, p2, knit.
• Row 7: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (15 sts).
• Row 8: Sl1 wyif, k3, p2, knit.
• Row 9: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (18 sts).
• Row 10: Sl1 wyif, k4, p2, knit.
• Row 11: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (21 sts).
• Row 12: Sl1 wyif, k5, p2, knit.
• Row 13: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (24 sts).
• Row 14: Sl1 wyif, k6, p2, knit.
• Row 15: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (27 sts).
• Row 16: Sl1 wyif, k7, p2, k13, p2, k1, p1.
• Row 17: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (30 sts).
• Row 18: Sl1 wyif, k8, p2, k13, p2, k3, p1.
• Row 19: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (33 sts).
• Row 20: Sl1 wyif, k9, p2, k13, p2, k5, p1.
• Row 21: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (36 sts).
• Row 22: Sl1 wyif, k10, p2, k13, p2, k7, p1.
• Row 23: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (39 sts).
• Row 24: Sl1 wyif, k11, p2, k13, p2, k9, p1.
• Row 25: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (42 sts).
• Row 26: Sl1 wyif, k12, p2, k13, p2, k11, p1.
• Row 27: Sl1 wyib, (k1, yo, k1) in next st, knit to last 2 sts, kfb, k1 (45 sts).
• Row 28: Sl1 wyif, k13, p2, k13, p2, k13, p1.
• Row 29: Sl1 wyib, k14, yo, k15, yo, knit (47 sts).
• Row 30: Sl1 wyif, k13, p1, k1, p1, k13, p1, k1, p1, k13, p1.
• Row 31: Sl1 wyib, k14, (k1, yo, k1) in next st, k15, (k1, yo, k1) in next st, k15 (51 sts).
• Row 32: Sl1 wyif, k13, p1, k3, p1, k13, p1, k3, p1, k13, p1.
• Row 33: Sl1 wyib, k14, k1, (k1, yo, k1) in next st, k1, k15, k1, (k1, yo, k1) in next st, k1, knit (55 sts).
• Row 34: Sl1 wyif, k13, p1, k5, p1, k13, p1, k5, p1, k13, p1.
• Row 35: Sl1 wyib, k14, k2, (k1, yo, k1) in next st, k2, k15, k2, (k1, yo, k1) in next st, k2, knit (59 sts).
• Row 36: Sl1 wyif, k13, p1, k7, p1, k13, p1, k7, p1, k13, p1.
• Row 37: Sl1 wyib, k14, k3, (k1, yo, k1) in next st, k3, k15, k3, (k1, yo, k1) in next st, k3, knit (63 sts).
• Rows 38 and 40: Sl1 wyif, k13, p1, k9, p1, k13, p1, k9, p1, k13, p1.
• Rows 39 and 47: Sl1 wyib, knit.
• Row 41: Sl1 wyib, k14, k4, (k1, yo, k1) in next st, k4, k15, k4, (k1, yo, k1) in next st, k4, knit (67 sts).
• Row 42: Sl1 wyif, k13, p1, k11, p1, k13, p1, k11, p1, k13, p1.
• Row 43: Sl1 wyib, k14, k5, (k1, yo, k1) in next st, k5, k15, k5, (k1, yo, k1) in next st, k5, knit (71 sts).
• Row 44: Sl1 wyif, k13, p1, k13, p1, k13, p1, k13, p1, k13, p1.
• Row 45: Sl1 wyib, k14, k6, (k1, yo, k1) in next st, k6, k15, k6, (k1, yo, k1) in next st, k6, knit (75 sts).
• Row 46: Sl1 wyif, k13, p1, k15, p1, k13, p1, k15, p1, k13, p1.
• Row 48: Sl1 wyif, k13, p2, k13, p2, k13, p2, k13, p2, k13, p1.