Techniques used 
K: Knit
P: Purl
Yo: Yarn over
Sk2p: Slip 1, knit 2 together, pass slipped stitch over
Pattern
Multiple of 10 sts, + 1.
Row 1 (RS): purl
Row 2: knit.
Row 3: k1, *yo, k3, sk2p, k3, yo, k1*.
Row 4: purl.
Row 5: k2, *yo, k2, sk2p, k2, yo, k3*, yo, k2, sk2p, k2, yo, k2.
Row 6: purl.
Row 7: k3, *yo, k1, sk2p, k1, yo, k5*, yo, k1, sk2p, k1, yo, k3.
Row 8: purl.
Row 9: k4, *yo, sk2p, yo, k7*, yo, sk2p, yo, k4.
Row 10: purl.
Repeat rows 1-10.