Shown with a cast-on count of 1 stitch.  

• Round 1: Kfb (2 sts).
• Round 2: K2.
• Round 3: K1, yo, k1 (3 sts).
• Round 4: K3.
• Round 5: K1, yo, k1, yo, k1 (5 sts).
• Round 6: K5.
• Round 7: K1, yo, k3, yo, k1 (7 sts).
• Round 8: K7.
• Round 9: K1, yo, k2tog, yo, k1, yo, ssk, yo, k1 (9 sts).
• Round 10: K3, p1, k1, p1, k3.
• Round 11: K1, yo, k2tog, k1, yo, k1, yo, k1, ssk, yo, k1 (11 sts).
• Round 12: K3, p2, k1, p2, k3.
• Round 13: K1, yo, k2tog, k2, yo, k1, yo, k2, ssk, yo, k1 (13 sts).
• Round 14: K3, p3, k1, p3, k3.
• Round 15: K1, yo, k2tog, k3, yo, k1, yo, k3, ssk, yo, k1 (15 sts).
• Round 16: K3, p4, k1, p4, k3.
• Round 17: K1, yo, k1, yo, ssk, k7, k2tog, yo, k1, yo, k1 (17 sts).
• Round 18: K5, p3, k1, p3, k5.
• Round 19: K1, yo, k3, yo, ssk, k5, k2tog, yo, k3, yo, k1 (19 sts).
• Round 20: K7, p2, k1, p2, k7.
• Round 21: K1, yo, k2tog, yo, k1, yo, ssk, yo, ssk, k3, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, k1 (21 sts).
• Round 22: K3, p1, k1, p1, k3, p1, k1, p1, k3, p1, k1, p1, k3.
• Round 23: K1, yo, k2tog, k1, yo, k1, yo, k1, ssk, yo, ssk, k1, k2tog, yo, k2tog, k1, yo, k1, yo, k1, ssk, yo, k1 (23 sts).
• Round 24: K3, p2, k1, p2, k3, p1, k3, p2, k1, p2, k3.
• Round 25: K1, yo, k2tog, k2, yo, k1, yo, k2, ssk, yo, bunny ears back dec, yo, k2tog, k2, yo, k1, yo, k2, ssk, yo, k1 (26 sts).
• Round 26: *K3, p3, k1, p3, k3, repeat from *.
• Round 27: *K1, yo, k2tog, k3, yo, k1, yo, k3, ssk, yo, k1, repeat from * (30 sts).
• Rounds 28 and 30: *K3, p4, k1, p4, k3, repeat from *.
• Round 29: *K1, yo, k2tog, k9, ssk, yo, k1, repeat from *.
• Round 31: *K1, yo, k2tog, k4, yo, k1, yo, k4, ssk, yo, k1, repeat from * (34 sts).
• Round 32: *K3, p5, k1, p5, k3, repeat from *.
• Round 33: *K1, yo, k2tog, k11, ssk, yo, k1, repeat from *.
• Round 34: K3, p5, k1, p5, k3, k3, p5, k1, p5, k3.
• Round 35: K1, yo, k2tog, k5, yo, k1, yo, k5, ssk, yo, k1, yo, k1, yo, k2tog, k5, yo, k1, yo, k5, ssk, yo, k1 (39 sts).
• Round 36: K3, p5, k3, p5, k4, k3, p5, k3, p5, k3.
• Round 37: K1, yo, k2tog, k4, ssk, yo, k1, yo, k2tog, k4, ssk, yo, k1, yo, k1, yo, k1, yo, k2tog, k4, ssk, yo, k1, yo, k2tog, k4, ssk, yo, k1 (41 sts).
• Round 38: K3, p4, k1, p1, k1, p1, k1, p4, k3, k3, k3, p4, k1, p1, k1, p1, k1, p4, k3.
• Round 39: K1, yo, k2tog, k3, ssk, yo, k3, yo, k2tog, k3, ssk, yo, k1, yo, k3, yo, k1, yo, k2tog, k3, ssk, yo, k3, yo, k2tog, k3, ssk, yo, k1 (43 sts).
• Round 40: K3, p3, k1, p2, k1, p2, k1, p3, k3, k1, p1, k1, p1, k1, k3, p3, k1, p2, k1, p2, k1, p3, k3.
• Round 41: Ssk, yo, k2tog, k1, ssk, yo, k2tog, yo, k1, yo, ssk, yo, k2tog, k1, ssk, yo, k2tog, yo, k2tog, yo, k1, yo, ssk, yo, ssk, yo, k2tog, k1, ssk, yo, k2, yo, k1, yo, k2, yo, k2tog, k1, ssk, yo, k2tog.
• Round 42: K3, p1, k1, p3, k1, p3, k1, p1, k3, k2, p2, k1, p2, k2, k3, p1, k1, p3, k1, p3, k1, p1, k3.