Shown with a cast-on count of 44 stitches.  

• Rows 1 and 13 (RS): Knit.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24: Purl.
• Row 3: *P4, [k2tog, yo, k1] twice, k2tog, yo, p10, repeat from *.
• Row 5: *K3, [k2tog, yo, k1] 3 times, k10, repeat from *.
• Row 7: *P2, [k2tog, yo, k1] twice, k2tog, yo, p12, repeat from *.
• Row 9: *K1, [k2tog, yo, k1] 3 times, k12, repeat from *.
• Row 11: *[K2tog, yo, k1] twice, k2tog, yo, p14, repeat from *.
• Row 15: *P9, [k1, yo, ssk] 3 times, p4, repeat from *.
• Row 17: *K11, [yo, ssk, k1] 3 times, k2, repeat from *.
• Row 19: *P11, [k1, yo, ssk] 3 times, p2, repeat from *.
• Row 21: *K13, [yo, ssk, k1] 3 times, repeat from *.
• Row 23: *P13, [k1, yo, ssk] 3 times, repeat from *.
• Repeat rows 1-24.