Shown with a cast-on count of 21 stitches.  

• Row 1 (RS): K2, yo, ssk, k13, k2tog, yo, k2.
• Rows 2, 4, 6, and 8: Purl.
• Row 3: K1, M1L, k2, yo, ssk, k11, k2tog, yo, k2, M1R, k1 (23 sts).
• Row 5: K2, ssk, yo, k1, yo, ssk, k9, k2tog, yo, k1, yo, k2tog, k2.
• Row 7: Ssk, yo, k2, yo, k2, yo, ssk, k7, k2tog, yo, k2, yo, k2, yo, k2tog (25 sts).