Shown with a cast-on count of 39 stitches.  

• Rows 1, 3, and 5 (RS): [K1, p1] 19 times, k1.
• Rows 2 and 4: [P1, k1] 19 times, p1.
• Rows 6, 8, 10, 12, and 18: [P1, k1] twice, p31, [k1, p1] twice.
• Rows 7, 9, and 11: [K1, p1] twice, k4 tbl, k23, k4 tbl, [p1, k1] twice.
• Row 13: [K1, p1] twice, [k5, p5] 3 times, k1, [p1, k1] twice.
• Row 14: [P1, k1] twice, p1, [k5, p5] 3 times, [k1, p1] twice.
• Row 15: [K1, p1] twice, k4, p5, k6, p5, k5, p5, k1, [p1, k1] twice.
• Row 16: [P1, k1] twice, p1, k5, p5, k5, p6, k5, p4, [k1, p1] twice.
• Row 17: [K1, p1] twice, k31, [p1, k1] twice.
• Row 19: [K1, p1] twice, k10, kfb, k20, [p1, k1] twice (40 sts).
• Row 20: [P1, k1] twice, p32, [k1, p1] twice.
• Row 21: [K1, p1] twice, k13, turn (17 sts).
• Row 22: P13, [k1, p1] twice.
• Row 23: [K1, p1] twice, k14, sl1 wyib, yo, k1, k1 tbl, k1, k1 tbl, drop st, [k1, k1 tbl] 3 times, k6, [p1, k1] twice (40 sts).