Shown with a cast-on count of 9 stitches.  

• Row 1 (RS): *K1, yo, k3, yo, repeat from * to last st, k1 (multiple of 6 sts, plus 1).
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: *K2, sl1-k2tog-psso, k1, repeat from * to last st, k1 (multiple of 4 sts, plus 1).
• Rows 5 and 9: *K2, yo, k1, yo, k1, repeat from * to last st, k1 (multiple of 6 sts, plus 1).
• Rows 7 and 11: *K1, k2tog, k1, ssk, repeat from * to last st, k1 (multiple of 4 sts, plus 1).