Shown with a cast-on count of 0 stitches.  

• Row 2 (RS): Yo (1 st).
• Rows 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 41, 43, and 45: Purl.
• Row 4: Yo, k1, yo (3 sts).
• Row 6: Yo, k1, yo, ssk, yo (5 sts).
• Row 8: Yo, k1, k2tog, yo, k2, yo (7 sts).
• Row 10: Yo, k2tog, yo, knit to last 4 sts, yo, ssk, yo, ssk, yo (9 sts).
• Row 12: Yo, k3, k2tog, yo, k4, yo (11 sts).
• Row 14: Yo, k1, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, k1, yo (13 sts).
• Row 16: Yo, k5, k2tog, yo, k6, yo (15 sts).
• Row 18: Yo, k2tog, yo, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, yo, ssk, yo, ssk, yo (17 sts).
• Row 20: Yo, k7, k2tog, yo, k8, yo (19 sts).
• Row 22: Yo, k3, k2tog, yo, k4, yo, ssk, k8, yo (21 sts).
• Row 24: K3, yo, k3, k2tog, yo, k1, k2tog, yo, k2, yo, ssk, k3, yo, k3 (23 sts).
• Row 26: Kfb, k5, yo, k5, yo, ssk, k4, yo, k5, kfb (27 sts).
• Row 28: K12, k2tog, yo, k13.
• Row 30: Kfb, k3, yo, k1, k2tog, yo, k1, k2tog, yo, k3, yo, ssk, k2, yo, ssk, k1, yo, ssk, k1, yo, k3, kfb (31 sts).
• Row 32: K14, k2tog, yo, k15.
• Row 34: K8, yo, k7, yo, ssk, k6, yo, k8 (33 sts).
• Row 36: Kfb, k4, yo, k5, k2tog, yo, k3, k2tog, yo, k4, yo, ssk, k5, yo, k4, kfb (37 sts).
• Row 38: Kfb, k8, 1-to-5 inc, k8, yo, ssk, k7, 1-to-5 inc, k8, kfb (47 sts).
• Row 39: P9, k5tog, p17, k5tog, purl (39 sts).
• Row 40: K18, k2tog, yo, k19.
• Row 42: K6, yo, k6, k2tog, yo, k5, yo, ssk, k4, yo, ssk, k6, yo, k6 (41 sts).
• Row 44: Yo, knit, yo (43 sts).
• Row 46: Yo, k21, 1-to-5 inc, k21, yo (49 sts).
• Row 47: P22, p5tog, purl (45 sts).
• Row 48: Yo, k6, 1-to-5 inc, k8, 1-to-5 inc, k13, 1-to-5 inc, k8, 1-to-5 inc, k6, yo (63 sts).
• Row 49: P7, p5tog, p8, p5tog, p13, p5tog, p8, p5tog, p7 (47 sts).