Cast on 3 (long tail method)
K1, kfb, sl1.
K2, yo, k to second to last st, sl1. Repeat until you have 50 stitches on the needle.
K1, k2tog, yo, k2tog, k to second to last stitch, sl1. Repeat until you have 7 stitches left.
K1, k2tog, k2tog, k to second to last st, sl1. Repeat until you have three stitches left.
Use crochet hook to pull yarn through last 3 st. Weave ends in.