Shown with a cast-on count of 6 stitches.  

• Rows 1 and 3 (RS): Knit.
• Rows 2 and 7: Knit.
• Rows 4, 8, and 13 (RS): *K1, yo, repeat from * to last st, k1 (multiple of 2 sts, plus 1).
• Rows 5, 9, and 14: *K1, drop st, repeat from * to last st, k1 (multiple of 1 st, plus 1).
• Rows 6 and 15: *K2tog, yo, repeat from *.
• Rows 10, 12, and 19: *Yo, p2tog, repeat from *.
• Rows 11, 18, and 20: *Yo, p2tog, repeat from *.
• Row 16: *K1, yo, repeat from * to last st, k1 (multiple of 2 sts, plus 1).
• Row 17: *K1, drop st, repeat from * to last st, k1 (multiple of 1 st, plus 1).