Shown with a cast-on count of 37 stitches.  

• Row 1 (RS): Ssk, k4, yo, k1, yo, k4, *sl1-k2tog-psso, k4, yo, k1, yo, k4, repeat from * to last 2 sts, k2tog.
• Rows 2, 4, 8, and 10: Purl.
• Row 3: Ssk, k3, yo, k3, yo, k3, *sl1-k2tog-psso, k3, yo, k3, yo, k3, repeat from * to last 2 sts, k2tog.
• Row 5: Ssk, k2, yo, k2, 1-to-5 inc, k2, yo, k2, *sl1-k2tog-psso, k2, yo, k2, 1-to-5 inc, k2, yo, k2, repeat from * to last 2 sts, k2tog (multiple of 16 sts, plus 17).
• Row 6: P6, p5tog, *p11, p5tog, repeat from * to last 6 sts, p6 (multiple of 12 sts, plus 13).
• Row 7: Ssk, k1, yo, k1, yo, ssk, k1, k2tog, yo, k1, yo, k1, *sl1-k2tog-psso, k1, yo, k1, yo, ssk, k1, k2tog, yo, k1, yo, k1, repeat from * to last 2 sts, k2tog.
• Row 9: Ssk, yo, k3, yo, *sl1-k2tog-psso, yo, k3, yo, repeat from * to last 2 sts, k2tog.