Knitting pattern - waves

Description
Pattern rapport 21 stitches, plus 3, plus two edge stitches (they are not mentioned further in the description).

Rows 1 and 3 - knit stitches.
Row 2 - purl stitches
Row 4 - 1 knit, * yarn over, 21 knit *, 2 knit
Row 5 - 2 purl, * 1 purl, 3 knit - five times, 2 purl *, 1 purl
Row 6 - 1 knit, * 1 knit, yarn over, 1 knit, 3 purl, 1 knit - five times, yarn over *, 2 knit
Row 7 - 2 purl, * 2 purl, 3 knit, 1 purl - five times, 2 purl *, 1 purl
Row 8 - 1 knit, * 1 knit, yarn over - twice, knit the knit and purl together through the back loop, 2 purl - five times, 1 knit, yarn over - twice *, 2 knit
Row 9 - 2 purl, * 4 purl, 2 knit, 1 purl - five times, 4 purl *, 1 purl
Row 10 - 1 knit, * 1 knit, yarn over - four times, knit the knit and purl together through the back loop, 1 purl - five times, 1 knit, yarn over - four times *, 2 knit
Row 11 - 2 purl, * 8 purl, 1 knit, 1 purl - five times, 8 purl *, 1 purl
Row 12 - 1 knit, * 8 knit, knit the knit and purl together through the back loop - five times, 8 purl *, 2 knit
Row 13 - 2 purl, * 8 purl, knit 4 purls, place them on a spare needle, wrap the working yarn counterclockwise 3 times, place them back on the right needle, 9 purl *,
1 purl
Row 14 - knit stitches
Repeat the pattern from rows 1 to 14