Shown with a cast-on count of 37 stitches.  

• Row 1 (RS): K1, *k3, k2tog, yo, k1, yo, ssk, k4, repeat from *.
• Rows 2, 4, 6, 8, 10, 12, and 14: Purl.
• Row 3: K1, *k2, k2tog, yo, k3, yo, ssk, k3, repeat from *.
• Row 5: K1, *k1, k2tog, yo, k5, yo, ssk, k2, repeat from *.
• Row 7: K1, *k2tog, yo, k7, yo, ssk, k1, repeat from *.
• Row 9: K2tog, yo, k4, *k5, yo, sl1-k2tog-psso, yo, k4, repeat from * to last 7 sts, k5, yo, ssk.
• Row 11: K1, *yo, k2tog, k3, yo, k1, yo, k3, ssk, yo, k1, repeat from * (multiple of 14 sts, plus 1).
• Row 13: K1, *k1, yo, k4tog, yo, k3, yo, k4tog, yo, k2, repeat from * (multiple of 12 sts, plus 1).
• Repeat rows 5-14.