Row 1: *Slip 1 stitch as if to knit (SL), knit 2, PSSO*; repeat from * to end.
Row 2: *Knit 1, yarn over, knit 4*; repeat from * to end.
Row 3: *Knit 3, SL 1, knit 2, PSSO*; repeat from * to end.
Row 4: *Knit 4, yarn over, knit 1*; repeat from * to end.
Additional Notes
When you reach the desired length, start decreasing. The last row should not have yarn overs to avoid holes.
Complete the row by knitting 2 stitches together across. Leave a long yarn tail, thread it through the remaining stitches, pull tight to close the top of the beanie, and weave in the ends.