Shown with a cast-on count of 25 stitches.  

• Rows 1, 3, and 5 (RS): P1, *k2tog, k1, yo, k1, yo, k1, ssk, p1, repeat from *.
• Rows 2, 4, 6, 8, 10, and 12: *K1, p7, repeat from * to last st, k1.
• Row 7: P1, *yo, ssk, k3, k2tog, yo, p1, repeat from *.
• Row 9: P1, *k1, yo, ssk, k1, k2tog, yo, k1, p1, repeat from *.
• Row 11: P1, *k2, yo, sl1-k2tog-psso, yo, k2, p1, repeat from *.
• Rows 13, 15, and 17: *K1, yo, k1, ssk, p1, k2tog, k1, yo, repeat from * to last st, k1.
• Rows 14, 16, 18, 20, 22, and 24: P1, *p3, k1, p4, repeat from *.
• Row 19: *K2, k2tog, yo, p1, yo, ssk, k1, repeat from * to last st, k1.
• Row 21: *K1, k2tog, yo, k1, p1, k1, yo, ssk, repeat from * to last st, k1.
• Row 23: K2tog, yo, k2, p1, k2, yo, *sl1-k2tog-psso, yo, k2, p1, k2, yo, repeat from * to last 2 sts, ssk.
• Repeat rows 1-24.