Shown with a cast-on count of 38 stitches.  

• Row 1 (RS): *K2tog, k1, [yo, k2tog, k1] twice, yo, k1, yo, [k1, ssk, yo] twice, k1, ssk, repeat from *.
• Rows 2, 4, 6, and 8: Purl.
• Row 3: *K1, k2tog, [yo, k2tog, k1] twice, yo, k1, yo, [k1, ssk, yo] twice, ssk, k1, repeat from *.
• Row 5: *[K2tog, k1, yo] twice, k1, k2tog, k1, ssk, k1, [yo, k1, ssk] twice, repeat from * (multiple of 17 sts).
• Row 7: *K1, yo, k2tog, k2, yo, k2tog, [k1, yo] twice, k1, ssk, yo, k2, ssk, yo, k1, repeat from * (multiple of 19 sts).