Shown with a cast-on count of 31 stitches.  

• Row 1 (RS): [K1] 5 times, *yo, sl2-k1-p2sso, yo, [k1] 9 times, repeat from * to last 2 sts, yo, ssk.
• Rows 2, 6, 8, 10, 14, and 16: Purl.
• Row 3: K1, yo, ctr dbl inc, *sl1-k2tog-psso, [k1] 3 times, k3tog, 3-to-9 gather, repeat from * to last 5 sts, sl1-k2tog-psso, [k1] twice (multiple of 14 sts, plus 8).
• Row 4: [P1] 3 times, *[k1] 9 times, [p1] 5 times, repeat from * to last 5 sts, [k1] 5 times.
• Row 5: [K1] twice, yo, [k1] twice, *k1, ssk, k1, k2tog, [k1] 3 times, yo, [k1] 3 times, yo, [k1] twice, repeat from * to last 4 sts, k1, ssk, k1.
• Row 7: [K1] twice, yo, k1, yo, *k3tog, sl2-k1-p2sso, sl1-k2tog-psso, yo, k1, yo, [k1] 3 times, yo, k1, yo, repeat from * to last 5 sts, sl1-k2tog-psso, ssk (multiple of 12 sts, plus 7).
• Row 9: K2tog, yo, *[k1] 9 times, yo, sl2-k1-p2sso, yo, repeat from * to last 5 sts, [k1] 5 times.
• Row 11: [K1] twice, k3tog, *3-to-9 gather, sl1-k2tog-psso, [k1] 3 times, sl1-k2tog-psso, repeat from * to last 2 sts, ctr dbl inc, yo, k1 (multiple of 14 sts, plus 8).
• Row 12: [K1] 5 times, *[p1] 5 times, [k1] 9 times, repeat from * to last 3 sts, [p1] 3 times.
• Row 13: K1, k2tog, *[[k1] 3 times, yo] twice, [k1] 3 times, ssk, k1, k2tog, repeat from * to last 5 sts, [k1] 3 times, yo, [k1] twice.
• Row 15: K2tog, *sl1-k2tog-psso, yo, k1, yo, [k1] 3 times, yo, k1, yo, k3tog, sl2-k1-p2sso, repeat from * to last 6 sts, sl1-k2tog-psso, yo, k1, yo, [k1] twice (multiple of 12 sts, plus 7).