Shown with a cast-on count of 19 stitches.  

• Row 1 (WS): Purl.
• Rows 2 and 6 (RS): K1, [k1, yo, sl2-k1-p2sso, yo] 4 times, k2.
• Rows 4 and 8 (RS): Yo, [sl2-k1-p2sso, yo, k1, yo] 4 times, sl2-k1-p2sso, yo.
• Row 10 (RS): K1, [k1, yo, sl2-k1-p2sso, yo, (k1, p1) in next st, yo, sl2-k1-p2sso, yo] twice, k1, k1 (21 sts).
• Row 12 (RS): K1, [k1, yo, k2tog, yo, k2tog, yo, ssk, yo, ssk, yo] twice, k1, k1 (23 sts).
• Row 14 (RS): K1, [k1, yo, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, yo] twice, k1, k1 (27 sts).
• Row 16 (RS): K1, [k1, yo, k2tog, yo, k2tog, yo, k3, yo, ssk, yo, ssk, yo] twice, k1, k1 (31 sts).
• Row 18 (RS): K1, [k1, yo, k2tog, yo, k2tog, yo, k5, yo, ssk, yo, ssk, yo] twice, k1, k1 (35 sts).
• Row 20 (RS): K1, [k2, yo, ssk, yo, ssk, yo, ssk, k1, k2tog, yo, k2tog, yo, k2tog, yo, k1] twice, k1, k1.
• Row 22 (RS): K1, [(k1, p1) in next st, k2, yo, ssk, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k2tog, yo, k2] twice, (k1, p1) in next st, k1 (38 sts).
• Row 24 (RS): K2tog, [yo, ssk, k2, yo, ssk, yo, ssk, k1, k2tog, yo, k2tog, yo, k2, k2tog] twice, yo, ssk (35 sts).
• Row 26 (RS): K1, [k1, yo, ssk, k2, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k2, k2tog, yo] twice, k1, k1.
• Row 28 (RS): K1, [(k1, p1) in next st, k1, yo, ssk, k2, yo, ssk, k1, k2tog, yo, k2, k2tog, yo, k1] twice, (k1, p1) in next st, k1 (38 sts).
• Row 30 (RS): K2tog, [yo, ssk, k1, yo, ssk, k2, yo, sl1-k2tog-psso, yo, k2, k2tog, yo, k1, k2tog] twice, yo, ssk (35 sts).
• Row 32 (RS): K1, yo, [(k1, p1) in next st, yo, ssk, k1, yo, ssk, k5, k2tog, yo, k1, k2tog, yo] twice, (k1, p1) in next st, yo, k1 (40 sts).
• Row 34 (RS): K1, yo, k2tog, yo, ssk, yo, ssk, k1, yo, ssk, k3, k2tog, yo, k1, k2tog, yo, k2tog, yo, ssk, yo, ssk, k1, yo, ssk, k3, k2tog, yo, k1, k2tog, yo, k2tog, yo, ssk, yo, k1 (39 sts).
• Row 36 (RS): K1, yo, k2, yo, ctr dbl inc, yo, k2, yo, ssk, k1, yo, ssk, k1, k2tog, yo, k1, k2tog, yo, k2, ctr dbl inc, k2, yo, ssk, k1, yo, ssk, k1, k2tog, yo, k1, k2tog, yo, k2, yo, ctr dbl inc, yo, k2, yo, k1 (51 sts).
• Row 38 (RS): K1, yo, k2, k2tog, yo, k3, yo, ssk, k2, yo, ssk, k1, yo, sl1-k2tog-psso, yo, k1, k2tog, yo, k3, yo, k3, yo, k3, yo, ssk, k1, yo, sl1-k2tog-psso, yo, k1, k2tog, yo, k2, k2tog, yo, k3, yo, ssk, k2, yo, k1 (55 sts).
• Row 40 (RS): K1, yo, ssk, k2, yo, ssk, k1, k2tog, yo, k2, k2tog, yo, ssk, k3, k2tog, yo, ssk, k1, k2tog, yo, k3, yo, ssk, k1, k2tog, yo, ssk, k3, k2tog, yo, ssk, k2, yo, ssk, k1, k2tog, yo, k2, k2tog, yo, k1 (51 sts).
• Row 42 (RS): K1, [yo, k1, yo, sl1-k2tog-psso] 3 times, yo, k1, yo, ssk, k1, k2tog, yo, k1, yo, sl1-k2tog-psso, yo, ssk, k1, k2tog, yo, k3tog, yo, k1, yo, ssk, k1, k2tog, [yo, k1, yo, sl1-k2tog-psso] 3 times, yo, k1, yo, k1.
• Row 44 (RS): K1, yo, [k3, yo, k1, yo] 3 times, k3, yo, sl1-k2tog-psso, yo, sl1-k2tog-psso, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k3tog, yo, k3tog, [yo, k3, yo, k1] 3 times, yo, k3, yo, k1 (61 sts).
• Row 46 (RS): K1, yo, [ssk, k1, k2tog, yo, k1, yo] 3 times, ssk, k1, k2tog, yo, [ssk, yo] twice, ssk, k1, k2tog, [yo, k2tog] twice, yo, [ssk, k1, k2tog, yo, k1, yo] 3 times, ssk, k1, k2tog, yo, k1 (59 sts).
• Row 48 (RS): K1, yo, k1, [yo, sl1-k2tog-psso, yo, k3] 3 times, yo, sl1-k2tog-psso, yo, k1, yo, [ssk, yo] twice, sl1-k2tog-psso, [yo, k2tog] twice, yo, k1, [yo, sl1-k2tog-psso, yo, k3] 3 times, yo, sl1-k2tog-psso, yo, k1, yo, k1 (61 sts).
• Row 50 (RS): K1, yo, sl1-k2tog-psso, [yo, k1, yo, ssk, k1, k2tog] 3 times, yo, k1, yo, sl1-k2tog-psso, yo, ssk, yo, ssk, k1, k2tog, yo, k2tog, yo, sl1-k2tog-psso, [yo, k1, yo, ssk, k1, k2tog] 3 times, yo, k1, yo, sl1-k2tog-psso, yo, k1 (59 sts).
• Row 52 (RS): K1, yo, k2, [k1, (k1, p1) in next st, k1, yo, sl1-k2tog-psso, yo] 3 times, k1, (k1, p1) in next st, k3, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k2, [k1, (k1, p1) in next st, k1, yo, sl1-k2tog-psso, yo] 3 times, k1, (k1, p1) in next st, k3, yo, k1 (69 sts).
• Row 54 (RS): K1, k3, [k2tog, yo wrapping yarn twice, ssk, k3] 3 times, k2tog, yo wrapping yarn twice, ssk, k3, ssk, k1, k2tog, k3, [k2tog, yo wrapping yarn twice, ssk, k3] 3 times, k2tog, yo wrapping yarn twice, ssk, k3, k1 (59 sts).
• Row 56 (RS): BO (0 sts).