Shown with a cast-on count of 1 stitch.  

• Round 1: Yo, k1 (2 sts).
• Rounds 2, 4, 6, 8, 14, 22, 28, 42, 48, 54, 58, 60, 62, 64, 66, 68, and 70: Knit.
• Round 3: Yo, k2 (3 sts).
• Round 5: K1, yo, k2 (4 sts).
• Round 7: Ssk, k2 (3 sts).
• Round 9: Yo, kfb, yo, k2 (6 sts).
• Round 10: K2, yo, knit (7 sts).
• Round 11: Yo, k2tog, yo, k1, ssk, yo, k1, M1L, k1 (9 sts).
• Round 12: K3, yo, knit (10 sts).
• Round 13: Yo, k2tog, k1, yo, k2, ssk, yo, k1, M1L, k2 (12 sts).
• Round 15: Yo, k2tog, k4, ssk, yo, k2tog, k2 (11 sts).
• Round 16: K3, k2tog, knit (10 sts).
• Round 17: M1L, yo, k1, yo, k5tog, yo, k1, yo, kfb, yo, k2 (13 sts).
• Round 18: K9, yo, knit (14 sts).
• Round 19: M1L, k1, k3tog, yo, k1, yo, k2tog, yo, k2tog, yo, k1, ssk, yo, k2 (15 sts).
• Round 20: K9, yo, knit (16 sts).
• Round 21: Ssk, yo, k1, k3tog, k1, yo, k2tog, k1, yo, k2, ssk, yo, k1, M1L, k1.
• Round 23: M1L, M1L, M1L, yo, kfb, yo, k4tog, yo, k2tog, k4, ssk, yo, k1, M1L, k2 (20 sts).
• Rounds 24, 36, and 40: Yo, k2tog, knit.
• Round 25: K2tog, yo, yo, k1 tbl, k1, yo, k2, yo, ssk, k2tog, yo, k5tog, yo, k1, yo, k4.
• Round 26: M1L, yo, knit (22 sts).
• Round 27: Yo, ssk, k2tog, yo, k2, yo, k3, k2tog, yo, yo, ssk, k3tog, yo, yo, ssk, yo, k2, yo, k2 (24 sts).
• Round 29: K2tog, yo, yo, ssk, k6, yo, ssk, k2tog, yo, yo, ssk, k2tog, yo, k3, yo, kfb, yo, k2 (27 sts).
• Round 30: K2tog, yo, knit.
• Round 31: Yo, ssk, k2tog, yo, yo, k5tog, k2tog, yo, yo, ssk, k3tog, k2tog, yo, k2, yo, k1, yo, k1, yo, k2, yo, k1, yo, k2.
• Round 32: Yo, knit (28 sts).
• Round 33: K1, yo, k3tog, k2tog, yo, yo, ssk, k3tog, kfb, yo, k1, yo, k2, k1 tbl, yo, yo, ssk, k2, yo, k3, k2tog, yo, yo, k1 tbl, k2 (31 sts).
• Round 34: Yo, knit (32 sts).
• Round 35: Yo, ssk, yo, k3tog, k3tog, yo, k1, yo, k2, k1 tbl, yo, yo, ssk, k2, yo, ssk, k2tog, yo, k6, yo, ssk, k2tog, yo, k2.
• Round 37: Yo, k1, yo, kfb, k2tog, yo, yo, ssk, k2, yo, k3, yo, ssk, k2tog, yo, k2, yo, k2tog, yo, yo, ssk, k5tog, k2tog, yo, yo, ssk, yo, k2 (34 sts).
• Round 38: Yo, knit (35 sts).
• Round 39: K1 tbl, yo, yo, ssk, k1, yo, k2, yo, ssk, k2tog, yo, k6, k2tog, yo, yo, ssk, k3, yo, ssk, k2tog, yo, yo, sl1-k2tog-psso, k2tog, yo, k3 (36 sts).
• Round 41: Yo, ssk, k2tog, yo, k2, yo, k3, k2tog, yo, yo, ssk, k5tog, yo, yo, ssk, k2tog, yo, k2, yo, ssk, yo, [k3tog] twice, yo, k2tog, yo, k2 (32 sts).
• Round 43: Yo, k2tog, yo, yo, ssk, k6, yo, ssk, [k2tog, yo, yo, ssk] twice, yo, k2, yo, k1, yo, kfb, ssk, yo, yo, k2tog, kfb, yo, k1, yo, k2 (40 sts).
• Round 44: K2tog, yo, yo, knit (41 sts).
• Round 45: K1, yo, ssk, k2tog, yo, yo, k5tog, k2tog, yo, [yo, ssk, k2tog, yo] twice, k3, k2tog, yo, yo, k1 tbl, k1, yo, k2, yo, ssk, k2tog, yo, k1, yo, k2, k2tog, yo, yo, k1 tbl, k2 (42 sts).
• Round 46: Yo, yo, knit (44 sts).
• Round 47: Yo, ssk, k3tog, k2tog, yo, yo, ssk, k2tog, yo, yo, ssk, k3tog, k2tog, yo, k2, yo, ssk, k2tog, yo, k2, yo, k3, k2tog, yo, yo, ssk, k2, yo, k3, yo, ssk, k2tog, yo, k2 (42 sts).
• Round 49: Yo, k1, yo, kfb, sl1-k2tog-psso, k2tog, yo, yo, ssk, k3tog, kfb, yo, k1, yo, k2, k2tog, yo, yo, ssk, k6, yo, ssk, k2tog, yo, k6, k2tog, yo, yo, ssk, k2 (44 sts).
• Round 50: Yo, yo, k2tog, k2tog, knit.
• Round 51: K2tog, yo, yo, k1 tbl, k1, yo, k2, yo, k3tog, k3tog, yo, k1, yo, k2, k2tog, yo, yo, k1 tbl, k1, yo, yo, k1, k2, k2tog, yo, yo, k5tog, k2tog, yo, yo, ssk, k5tog, yo, yo, ssk, k2, k1, yo, yo, k1.
• Round 52: Yo, yo, knit (46 sts).
• Round 53: Yo, ssk, k2tog, yo, k2, yo, k3, k2tog, yo, yo, ssk, k2, yo, k3, yo, ssk, k2tog, yo, k1, yo, k2, yo, k1, [k2tog, yo, yo, ssk] 4 times, k1, yo, k2, yo, k1 (52 sts).
• Round 55: K2tog, yo, yo, ssk, k6, yo, ssk, k2tog, yo, k6, k2tog, yo, yo, ssk, k1, [yo, k1] 5 times, [yo, ssk, k2tog, yo] 4 times, k1, [yo, k1] 5 times (62 sts).
• Round 56: K2tog, k2tog, knit (60 sts).
• Round 57: Ssk, k2tog, yo, yo, k5tog, k2tog, yo, yo, ssk, k5tog, yo, yo, ssk, k2tog, [kfb] 11 times, [k2tog, yo, yo, ssk] 4 times, [kfb] 11 times (74 sts).
• Round 59: Ssk, k1, k2tog, yo, yo, ssk, k2tog, yo, yo, ssk, k1, k2tog, [1/1 LC] 11 times, [ssk, k2tog, yo, yo] 3 times, ssk, k2tog, [1/1 LC] 11 times (70 sts).
• Round 61: Ssk, k2, k2tog, yo, yo, ssk, k2, k2tog, [1/1 LC] 11 times, sl1-k2tog-psso, k2tog, yo, yo, ssk, k2tog, yo, yo, ssk, k3tog, [1/1 LC] 11 times (64 sts).
• Round 63: Sl1-k2tog-psso, yo, yo, k2tog, k2tog, yo, yo, sl1-k2tog-psso, [1/1 LC] 11 times, sl1-k2tog-psso, k2tog, yo, yo, ssk, k3tog, [1/1 LC] 11 times (58 sts).
• Round 65: Yo, ssk, k2tog, yo, yo, ssk, k2tog, yo, 1/1 LC, yo, [1/1 LC] 9 times, yo, 1/1 LC, yo, [k3tog] twice, yo, 1/1 LC, yo, [1/1 LC] 9 times, yo, 1/1 LC (60 sts).
• Round 67: K2tog, yo, yo, ssk, [k2tog, yo, yo, ssk, 1/1 LC, yo, k1, yo, 1/1 LC, yo, [1/1 LC] twice, k1 tbl, ssk, k2tog, k1 tbl, [1/1 LC] twice, yo, 1/1 LC, yo, k1, yo, 1/1 LC] twice (68 sts).
• Round 69: Ssk, k2tog, yo, yo, ssk, k2tog, k2tog, k3tog, 1/1 LC, yo, k1, yo, [1/1 LC] twice, ssk, k2tog, [1/1 LC] twice, yo, k1, yo, 1/1 LC, k3tog, 1/1 LC, yo, ssk, k2tog, yo, k2tog, k3tog, 1/1 LC, yo, k1, yo, [1/1 LC] twice, ssk, k2tog, [1/1 LC] twice, yo, k1, yo, 1/1 LC, k3tog, 1/1 LC (60 sts).
• Round 71: K3tog, k3tog, yo, yo, k1, yo, k1, yo, k2tog, yo, k3tog, yo, [k2tog, yo] 5 times, yo, k3tog, yo, k2tog, yo, k1, yo, k2tog, yo, k2tog, yo, yo, ssk, yo, k1, yo, k1, yo, k2tog, yo, k3tog, yo, [k2tog, yo] 5 times, yo, k3tog, yo, k2tog, yo, k1, yo, k2tog, yo, yo (64 sts).