Shown with a cast-on count of 22 stitches.  

• Rows 1 and 7 (RS): *K1, [yo, k3] 3 times, yo, k1, repeat from * (multiple of 15 sts).
• Rows 2, 4, 6, and 10: Purl.
• Row 3: *[K1, k2tog] twice, k3, [ssk, k1] twice, repeat from * (multiple of 11 sts).
• Row 5: *K3, yo, k2tog, k1, ssk, yo, k3, repeat from *.
• Row 8: *[P1, p2tog] twice, p3, [p2tog, p1] twice, repeat from * (multiple of 11 sts).
• Row 9: *K2tog, yo, k2, yo, sl2-k1-p2sso, yo, k2, yo, ssk, repeat from *.