Shown with a cast-on count of 30 stitches.  

• Round 1: *K1 tbl, p1, yo, k0, ssk, k9, p1, k1 tbl, repeat from *.
• Rounds 2, 4, 6, 8, 10, 12, 14, 16, 19-20, 22, 24, 26, 28, 30, 32, 34, 36, 38, and 40: *K1 tbl, p1, k11, p1, k1 tbl, repeat from *.
• Round 3: *K1 tbl, p1, yo, k1, ssk, k8, p1, k1 tbl, repeat from *.
• Round 5: *K1 tbl, p1, yo, k2, ssk, k7, p1, k1 tbl, repeat from *.
• Round 7: *K1 tbl, p1, yo, k3, ssk, k6, p1, k1 tbl, repeat from *.
• Round 9: *K1 tbl, p1, yo, k4, ssk, k5, p1, k1 tbl, repeat from *.
• Round 11: *K1 tbl, p1, yo, k5, ssk, k4, p1, k1 tbl, repeat from *.
• Round 13: *K1 tbl, p1, yo, k6, ssk, k3, p1, k1 tbl, repeat from *.
• Round 15: *K1 tbl, p1, yo, k7, ssk, k2, p1, k1 tbl, repeat from *.
• Round 17: *K1 tbl, p1, yo, k8, ssk, k1, p1, k1 tbl, repeat from *.
• Round 18: *K1 tbl, p1, yo, k9, ssk, k0, p1, k1 tbl, repeat from *.
• Round 21: *K1 tbl, p1, k9, k2tog, k0, yo, p1, k1 tbl, repeat from *.
• Round 23: *K1 tbl, p1, k8, k2tog, k1, yo, p1, k1 tbl, repeat from *.
• Round 25: *K1 tbl, p1, k7, k2tog, k2, yo, p1, k1 tbl, repeat from *.
• Round 27: *K1 tbl, p1, k6, k2tog, k3, yo, p1, k1 tbl, repeat from *.
• Round 29: *K1 tbl, p1, k5, k2tog, k4, yo, p1, k1 tbl, repeat from *.
• Round 31: *K1 tbl, p1, k4, k2tog, k5, yo, p1, k1 tbl, repeat from *.
• Round 33: *K1 tbl, p1, k3, k2tog, k6, yo, p1, k1 tbl, repeat from *.
• Round 35: *K1 tbl, p1, k2, k2tog, k7, yo, p1, k1 tbl, repeat from *.
• Round 37: *K1 tbl, p1, k1, k2tog, k8, yo, p1, k1 tbl, repeat from *.
• Round 39: *K1 tbl, p1, k0, k2tog, k9, yo, p1, k1 tbl, repeat from *.