Techniques used 
K: Knit
P: Purl
Yo: Yarn over
P2tog: Purl 2 together
Ssp: Slip slip purl
Pattern
Multiple of 20.
Row 1 (RS): *k5, p2tog, k2, yo, k5, yo, k2, ssp, k2*.
Rows 2, 4, 6, 8, 10, 12: purl.
Row 3: *k4, p2tog, k2, yo, k1, yo, k2, ssp, k7*.
Row 5: *k3, p2tog, k2, yo, k3, yo, k2, ssp, k6*.
Row 7: *k2, p2tog, k2, yo, k5, yo, k2, ssp, k5*.
Row 9: *k7, p2tog, k2, yo, k1, yo, k2, ssp, k4*.
Row 11: *k6, p2tog, k2, yo, k3, yo, k2, ssp, k3*.
Repeat rows 1-12.