Techniques used 
K: Knit
P: Purl
Yo: Yarn over
K2tog: Knit 2 together
P2tog: Purl 2 together
Ssk: Slip slip knit
Ssp: Slip slip purl
Pattern
Multiple of 12, + 1.
Row 1 (RS): k1, *ssk, k3, yo, k1, yo, k3, k2tog, k1*.
Row 2: p1, *p2tog, p2, yo, p3, yo, p2, ssp, p1*.
Row 3: k1, *ssk, k1, yo, k5, yo, k1, k2tog, k1*.
Row 4: p1, *yo, p2tog, p7, ssp, yo, p1*.
Row 5: k1, *yo, k3, k2tog, k1, ssk, k3, yo, k1*.
Row 6: p2, *yo, p2, ssp, p1, p2tog, p2, yo, p3*, yo, p2, ssp, p1, p2tog, p2, yo, p2.
Row 7: k3, *yo, k1, k2tog, k1, ssk, k1, yo, k5*, yo, k1, k2tog, k1, ssk, k1, yo, k3.
Row 8: p4, *ssp, yo, p1, yo, p2tog, p7*,ssp, yo, p1, yo, p2tog, p4.
Repeat rows 1-8.