Interesting pattern

Cast on stitches in a quantity that is a multiple of 20 + 2 edge stitches.
Rows 1-5 and 9, 11, 13 (odd) Knit
Rows 2-14 (even) Purl
Row 7 *slip 1 stitch purlwise to the right needle, slip 5 stitches purlwise to a spare needle, slip the next stitch purlwise to the right needle. Place the yarn in front of the work (to the left on the right side), move back 2 stitches from the right needle to the left, move the yarn to the right and behind the left needle, tighten firmly. Knit the first stitch from the left needle, knit all the stitches from the spare needle, knit the remaining 1 stitch on the left needle.* Repeat to the end of the row, starting from *
Row 15 *Knit 5 stitches. Slip 1 stitch purlwise to the right needle, slip 5 stitches purlwise to a spare needle, slip the next stitch purlwise to the right needle. Place the yarn in front of the work (to the left on the right side), move back 2 stitches from the right needle to the left, move the yarn to the right and behind the left needle, tighten firmly. Knit the first stitch from the left needle, knit all the stitches from the spare needle, knit the remaining 1 stitch on the left needle.* Repeat to the end of the row, starting from *
Repeat rows 1-15