Shown with a cast-on count of 28 stitches.  

• Round 1: *P2, k1, k2tog, p4, k2, p2, yo, k1, yo, repeat from * (multiple of 15 sts).
• Round 2: *P2, k1, k2tog, p3, k2, p2, k3, repeat from * (multiple of 14 sts).
• Round 3: *P2, k1, k2tog, p2, k2, p2, k1, yo, k1, yo, k1, repeat from * (multiple of 15 sts).
• Round 4: *P2, k1, k2tog, p1, k2, p2, k5, repeat from * (multiple of 14 sts).
• Round 5: *P2, k1, k2tog, k2, p2, k2, yo, k1, yo, k2, repeat from * (multiple of 15 sts).
• Round 6: *P2, k1, k2tog, k1, p2, k7, repeat from * (multiple of 14 sts).
• Round 7: *P2, k1, k2tog, p2, k3, yo, k1, yo, k3, repeat from * (multiple of 15 sts).
• Round 8: *P2, k2tog, p2, k9, repeat from * (multiple of 14 sts).
• Round 9: *P2, yo, k1, yo, p2, k1, k2tog, p1, k5, repeat from * (multiple of 15 sts).
• Round 10: *P2, k3, p2, k1, k2tog, p1, k4, repeat from * (multiple of 14 sts).
• Round 11: *P2, k1, yo, k1, yo, k1, p2, k1, k2tog, p1, k3, repeat from * (multiple of 15 sts).
• Round 12: *P2, k5, p2, k1, k2tog, p1, k2, repeat from * (multiple of 14 sts).
• Round 13: *P2, k2, yo, k1, yo, k2, p2, k1, k2tog, k2, repeat from * (multiple of 15 sts).
• Round 14: *P2, k7, p2, k1, k2tog, k1, repeat from * (multiple of 14 sts).
• Round 15: *P2, k3, yo, k1, yo, k3, p2, k1, k2tog, repeat from * (multiple of 15 sts).
• Round 16: *P2, k9, p2, k2tog, repeat from * (multiple of 14 sts).