Tumbling Moss Blocks Knit Purl Pattern

Pattern
Cast on a multiple of 20 sts.
Row 1 (RS): *Purl 1, Knit 1; rep from * to end.
Row 2 (WS): *Purl 2, (Knit 1, Purl 1) 3 times, Knit 2; rep from * to end.
Row 3: *Purl 3, (Knit 1, Purl 1) twice, Knit 3; rep from * to end.
Row 4: *Purl 4, Knit 1, Purl 1, Knit 4; rep from * to end.
Row 5: *Purl 5, Knit 5; rep from * to end.
Row 6: *Purl 5, Knit 5; rep from * to end.
Row 7: *Knit 1, Purl 4, Knit 4, Purl 1; rep from * to end.
Row 8: *Purl 1, Knit 1, Purl 3, Knit 3, Purl 1, Knit 1; rep from * to end.
Row 9: *Knit 1, Purl 1, Knit 1, Purl 2, Knit 2, Purl 1, Knit 1, Purl 1; rep from * to end.
Row 10: *Purl 1, Knit 1; rep from * to end.
Row 11: *Knit 1, Purl 1; rep from * to end.
Row 12: *Purl 1, Knit 1, Purl 1, Knit 2, Purl 2, Knit 1, Purl 1, Knit 1; rep from * to end.
Row 13: *Knit 1, Purl 1, Knit 3, Purl 3, Knit 1, Purl 1; rep from * to end.
Row 14: *Purl 1, Knit 4, Purl 4, Knit 1; rep from * to end.
Row 15: *Knit 5, Purl 5; rep from * to end.
Row 16: *Knit 5, Purl 5; rep from * to end.
Row 17: *Knit 4, Purl 1, Knit 1, Purl 4; rep from * to end.
Row 18: *Knit 3, (Purl 1, Knit 1) twice, Purl 3; rep from * to end.
Row 19: *Knit 2, (Purl 1, Knit 1) 3 times, Purl 2; rep from * to end.
Row 20: *Knit 1, Purl 1; rep from * to end.
Rep Rows 1-20.