Shown with a cast-on count of 25 stitches.  

• Row 1 (RS): *K1, ssk, yo, k7, yo, k2tog, repeat from * to last st, k1.
• Rows 2 and 12: P1, *p1, k1, p7, k1, p2, repeat from *.
• Row 3: *K2, ssk, yo, k5, yo, k2tog, k1, repeat from * to last st, k1.
• Rows 4 and 14: P1, *p2, k1, p5, k1, p3, repeat from *.
• Row 5: *K3, ssk, yo, k3, yo, k2tog, k2, repeat from * to last st, k1.
• Rows 6 and 16: P1, *p3, k1, p3, k1, p4, repeat from *.
• Row 7: *K4, ssk, yo, k1, yo, k2tog, k3, repeat from * to last st, k1.
• Row 8: P1, *p4, k1, p1, k1, p5, repeat from *.
• Row 9: *K1, yo, ssk, k7, k2tog, yo, repeat from * to last st, k1.
• Row 10: P1, *k1, p9, k1, p1, repeat from *.
• Row 11: *K2, yo, ssk, k5, k2tog, yo, k1, repeat from * to last st, k1.
• Row 13: *K3, yo, ssk, k3, k2tog, yo, k2, repeat from * to last st, k1.
• Row 15: *K4, yo, ssk, k1, k2tog, yo, k3, repeat from * to last st, k1.