Techniques used 
K: Knit
P: Purl
Yo: Yarn over
K2tog: Knit 2 together
Ssk: Slip slip knit
  • Sskpo: Slip slip knit, then place the stitch back on the left-hand needle. Lift the second stitch on the left-hand needle over the ssk loop, then return the ssk loop to the right-hand needle.
Pattern 
Multiple of 15.
Row 1(RS): *k1, yo, ssk, k5, k2tog, yo, k2, k2tog, yo, k1*.
Rows 2, 4, 6, 8, 10, 12, 14, 16: purl.
Row 3: *k2, yo, ssk, k3, (k2tog, yo, k2) twice*.
Row 5: *k3, yo, ssk, k1, k2tog, yo, k2, k2tog, yo, k3*.
Row 7: *k4, yo, sskpo, yo, k2, k2tog, yo, k4*.
Row 9: *k4, k2tog, yo, k2, k2tog, yo, k5*.
Row 11: *k3, k2tog, yo, k2, k2-tog, yo, k1, yo, ssk, k3*.
Row 13: *(k2, k2tog, yo) twice, k3, yo, ssk, k2*.
Row 15: *k1, k2tog, yo, k2, k2tog, yo, k1, yo, ssk, k2, yo, ssk, k1*.
Repeat rows 1-16.