Shown with a cast-on count of 2 stitches.  

• Row 1 (RS): [Yo, k1] twice (4 sts).
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, and 50: Knit.
• Row 3: [Yo, k2] twice (6 sts).
• Row 5: [Yo, k3] twice (8 sts).
• Row 7: [Yo, k4] twice (10 sts).
• Row 9: [Yo, k5] twice (12 sts).
• Row 11: [Yo, k6] twice (14 sts).
• Row 13: [Yo, k1, yo, ssk, k4] twice (16 sts).
• Row 15: [Yo, k3, yo, ssk, k3] twice (18 sts).
• Row 17: [Yo, k5, yo, ssk, k2] twice (20 sts).
• Row 19: [Yo, k7, yo, ssk, k1] twice (22 sts).
• Row 21: [Yo, k9, yo, ssk] twice (24 sts).
• Row 23: [Yo, k12] twice (26 sts).
• Row 25: [Yo, k1, yo, ssk, k10] twice (28 sts).
• Row 27: [Yo, k3, yo, ssk, k9] twice (30 sts).
• Row 29: [Yo, k5, yo, ssk, k8] twice (32 sts).
• Row 31: [Yo, k7, yo, ssk, k7] twice (34 sts).
• Row 33: [Yo, k9, yo, ssk, k6] twice (36 sts).
• Row 35: [Yo, k11, yo, ssk, k5] twice (38 sts).
• Row 37: [Yo, k1, yo, ssk, k10, yo, ssk, k4] twice (40 sts).
• Row 39: [Yo, k3, yo, ssk, k10, yo, ssk, k3] twice (42 sts).
• Row 41: [Yo, k5, yo, ssk, k10, yo, ssk, k2] twice (44 sts).
• Row 43: [Yo, k7, yo, ssk, k10, yo, ssk, k1] twice (46 sts).
• Row 45: [Yo, k9, yo, ssk, k10, yo, ssk] twice (48 sts).
• Row 47: [Yo, k11, yo, ssk, k11] twice (50 sts).
• Row 49: [Yo, k1, yo, ssk, k10, yo, ssk, k10] twice (52 sts).